--- title: "ISO/IEC 27035 vs NIS2 Comparison" canonical_url: "https://www.sorena.io/artifacts/global/iso-27035/iso-27035-vs-nis2" source_url: "https://www.sorena.io/artifacts/global/iso-27035/iso-27035-vs-nis2" author: "Sorena AI" description: "ISO/IEC 27035 vs NIS2 for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance." published_at: "2026-05-09" updated_at: "2026-05-09" keywords: - "ISO/IEC 27035 vs NIS2" - "ISO/IEC 27035" - "ISO/IEC 27035 Information Security Incident Management" - "ISO/IEC 27035 vs NIS2 checklist" - "ISO/IEC 27035 vs NIS2 evidence" - "ISO/IEC 27035 vs NIS2 implementation" - "global compliance" --- **[SORENA](https://www.sorena.io/)** - AI-Powered GRC Platform [Home](https://www.sorena.io/) | [Solutions](https://www.sorena.io/solutions) | [Artifacts](https://www.sorena.io/artifacts) | [About Us](https://www.sorena.io/about-us) | [Contact](https://www.sorena.io/contact) | [Portal](https://app.sorena.io) --- # ISO/IEC 27035 vs NIS2 Comparison ISO/IEC 27035 vs NIS2 for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. *Side-by-side* *Global* *ISO/IEC 27035* ## ISO/IEC 27035 ISO/IEC 27035 vs NIS2 ISO/IEC 27035 vs NIS2 should help teams make a decision, assign owners, and collect evidence under ISO/IEC 27035 Information Security Incident Management. Grounded in external ISO, NIST, EU, or framework sources where relevant. This is practical implementation guidance, supporting implementation planning and should be validated against jurisdiction-specific legal, contractual, and policy requirements before implementation. This page on ISO/IEC 27035 vs NIS2 defines trigger and scope boundaries, assign accountable owners, identify required evidence, and define review rules for scope or risk changes. ## ISO/IEC 27035 vs NIS2: scope, duties, evidence, and decision rule Use this comparison to decide when ISO/IEC 27035 is the right operating model, when NIS2 controls the analysis, and how to reuse evidence without mixing sources. - **ISO/IEC 27035**: ISO/IEC 27035 is the primary scoping column: use it to confirm covered facts, accountable owners, mandatory artifacts, timing, and enforcement exposure before assigning implementation work. - **NIS2**: NIS2 is the second workstream in this comparison. Use it to test where the comparator has different scope, owners, triggers, evidence, timing, enforcement, and reuse limits from ISO/IEC 27035. | Dimension | ISO/IEC 27035 | NIS2 | Operational implication | Sources | | --- | --- | --- | --- | --- | | Scope and covered activity | ISO/IEC 27035 structures information security incident management from preparation and detection through response and lessons learned. | NIS2 is binding EU cybersecurity law for covered essential and important entities, including governance, risk-management, and incident-reporting duties. | Write the scope memo so teams can see when ISO/IEC 27035 is the implementation structure, when NIS2 controls the obligation or assurance question, and where evidence can be reused without changing the source test. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Who must act | ISO/IEC 27035 ownership should sit with the team that can operate the relevant management system, control process, risk method, supplier relationship, incident process, privacy process, or AI governance scope. | NIS2 ownership should follow that source's role model, such as regulator-facing accountable body, service organization, framework owner, provider, customer, processor, deployer, supplier, or risk owner. | Do not copy owners from one side to the other; map accountable owners, reviewers, and approvers separately. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Trigger or threshold | ISO/IEC 27035 work is triggered by scope definition, implementation, certification readiness, customer assurance, control gaps, incidents, supplier changes, or management review. | NIS2 work is triggered by its own legal, assurance, framework, contract, customer, or risk-management event. | Use the trigger to route intake: standards implementation, regulatory response, assurance report, framework mapping, customer request, or operational remediation. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Core obligations | ISO/IEC 27035 requires practical governance: scope, roles, risk or impact decisions, evidence, operating cadence, monitoring, review, and improvement. | NIS2 expects its own required or recommended outcomes, which may include legal duties, assurance criteria, control objectives, profiles, or risk methodology. | Translate both sides into a single task register only after labeling which requirement or guidance source each task satisfies. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Evidence and records | ISO/IEC 27035 evidence should show the process operating: owners, decisions, registers, control records, test results, review minutes, audit samples, or corrective actions. | NIS2 evidence should match its own proof model, such as regulatory records, attestation evidence, framework profiles, risk analysis, or contractual assurance. | Build an evidence matrix with one row per claim and columns for source, owner, artifact, date, review trigger, and reuse permission. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Timing and cadence | ISO/IEC 27035 timing follows implementation, audit, certification, review, supplier, incident, or change cycles rather than a single universal deadline. | NIS2 timing follows the legal effective date, assurance period, framework version, contract milestone, or publication lifecycle that applies to that side. | Track dates separately so an ISO review cycle does not get mistaken for a statutory deadline or assurance reporting period. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Enforcement or assurance route | ISO/IEC 27035 is usually tested through certification audits, internal audits, customer assurance, management review, or governance review, depending on how the organization adopts it. | NIS2 is binding EU cybersecurity law for in-scope essential and important entities, with supervision and enforcement handled through national transposition and competent authorities. | Separate audit readiness from legal compliance and from voluntary framework maturity so executives see the actual consequence of gaps. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Overlap and reuse | ISO/IEC 27035 can supply reusable management-system evidence, control operation records, risk decisions, and review outputs. | NIS2 can reuse some of that evidence when the control, process, risk, or duty is genuinely the same. | Reuse evidence only after checking scope, actor, date, data type, service, supplier, and acceptance criteria; otherwise keep separate records. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | | Practical decision rule | Use ISO/IEC 27035 when the main work is building, operating, reviewing, or proving a management-system or standards-based control process. | Use NIS2 when the main work is satisfying that side's law, assurance route, framework outcome, risk method, or external reporting expectation. | If both apply, keep the primary obligation visible and use the other side as supporting structure, not as a substitute source. | [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process.
[Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. | Sources for Scope and covered activity - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Scope and covered activity - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Scope and covered activity - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Who must act - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Who must act - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Who must act - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Trigger or threshold - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Trigger or threshold - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Trigger or threshold - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Core obligations - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Core obligations - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Core obligations - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Evidence and records - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Evidence and records - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Evidence and records - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Timing and cadence - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Timing and cadence - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Timing and cadence - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Enforcement or assurance route - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Enforcement or assurance route - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Enforcement or assurance route - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Overlap and reuse - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Overlap and reuse - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Overlap and reuse - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Practical decision rule - ISO/IEC 27035: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" Sources for Practical decision rule - NIS2: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" Sources for Practical decision rule - operational implication: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" ### How should teams decide between ISO/IEC 27035 and NIS2 for compliance planning? - Use ISO/IEC 27035 when the work is about building or proving an incident-management process; use NIS2 when the work is about legal scope, supervision, or mandatory reporting duties. - If NIS2 applies, use ISO/IEC 27035 to organize the response process and evidence, but keep the law as the source of the obligation. - Reuse evidence only where the same owner, scope, time period, system, supplier, data type, and acceptance criteria apply. Sources for the practical decision rule: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" ## What decision should teams make about ISO/IEC 27035 vs NIS2 under ISO/IEC 27035 Information Security Incident Management? For ISO/IEC 27035, the useful record is practical: decision, scope, owner, evidence, exception, review trigger, and next action. The first decision is whether ISO/IEC 27035 vs NIS2 changes scope, risk, control selection, evidence, certification readiness, customer commitments, or regulatory mapping. If it does, treat it as an accountable management-system decision rather than a side note. ISO/IEC 27035 is useful when it turns broad intent into repeatable work: turn incident handling into a prepared, measurable, evidence-backed process from detection through lessons learned. The page therefore ends in ownership, evidence, and review cadence, not only a definition. - Use ISO/IEC 27035 when you need an incident-management operating model: prepare, detect, report, assess, respond, and learn lessons. - Use NIS2 when the question is legal scope, supervisory exposure, or mandatory incident-reporting timing for in-scope entities. - Use both when NIS2 sets the obligation and ISO/IEC 27035 supplies the process and evidence structure for meeting it. Sources for this answer: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - [ISO/IEC 27035-2:2023 standard page](https://www.iso.org/standard/78974.html?ref=sorena.io) - Primary ISO listing for planning, preparing, and lessons-learned guidance. ## Which records should prove ISO/IEC 27035 vs NIS2 is implemented correctly? Evidence should be collected where the work actually happens. For ISO/IEC 27035, that usually means incident policy, incident response plan, IMT/IRT roles, severity matrix, event triage records, escalation logs, notification evidence, containment and recovery records, lessons learned, and retained logs. A strong evidence set tells a visitor, auditor, customer, or decision owner what was decided, why it was reasonable, who approved it, and when it must be reviewed again. - Artifact-specific evidence: incident policy, response plan, severity matrix, triage records, escalation logs, notifications, containment and recovery notes, lessons learned, and retained logs. - Decision record: scope, assumption, risk or obligation, owner, approval, and date. - Operation record: ticket, log, review, test, contract clause, register entry, or control sample showing the process ran. - Review record: result, exception, corrective action, next owner, and next review date. Sources for this answer: - [ISO/IEC 27035-2:2023 standard page](https://www.iso.org/standard/78974.html?ref=sorena.io) - Primary ISO listing for planning, preparing, and lessons-learned guidance. - [ISO/IEC 27035-3:2020 standard page](https://www.iso.org/standard/74033.html?ref=sorena.io) - Primary ISO listing for ICT incident response operations guidance. ## How should teams turn ISO/IEC 27035 vs NIS2 into a repeatable workflow? Build the workflow around a small number of durable checkpoints: intake, classification, owner assignment, evidence request, decision, review, and escalation. This keeps the work usable across audits, customer assurance, and operational reviews. Avoid overfitting the workflow to one audit cycle. The same record should help during normal operations, change review, incident response, supplier review, or management review depending on the topic. - Intake: describe the system, service, supplier, control, incident, AI system, or process affected. - Classification: decide whether the record concerns incident detection, assessment, escalation, NIS2 notification timing, essential or important entity scope, or post-incident lessons learned. - Escalation: route exceptions to the person or forum that can accept risk or fund remediation. Sources for this answer: - [ISO/IEC 27035-3:2020 standard page](https://www.iso.org/standard/74033.html?ref=sorena.io) - Primary ISO listing for ICT incident response operations guidance. - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. *Recommended next step* *Placement: after implementation guidance* ## Operationalize ISO/IEC 27035 vs NIS2 This page moves ISO/IEC 27035 guidance into an auditable operating loop with owners, evidence requests, decision records, and scheduled review dates. - [Open Assessment Autopilot for ISO/IEC 27035](/solutions/assessment.md): Convert ISO/IEC 27035 vs NIS2 into accountable tasks, evidence requests, and review checkpoints. - [Talk through implementation](/contact.md): Review your current scope, evidence gaps, and next implementation steps. ## What mistakes make ISO/IEC 27035 vs NIS2 weak or hard to audit? The common failure is writing generic compliance copy that cannot be connected to a real owner, system, supplier, recovery target, control sample, risk decision, or AI use case. That makes the page look complete but leaves no proof when someone asks how it works. Another failure is mixing standards and regulations without stating which source creates the requirement. Use ISO standards to structure management-system practice, and use legal sources separately when a binding obligation applies. - Do not cite a standard title as evidence that a process is operating. - Do not reuse an old audit artifact after the scope, service, supplier, or risk has changed. - Do not hide exceptions; record them as risk acceptance, corrective action, or management-review inputs. Sources for this answer: - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. ## How should teams review and improve ISO/IEC 27035 vs NIS2 over time? Review should happen during each incident, after exercises, after major control or threat changes, and during lessons-learned and management-review cycles. If the review changes the decision, update the register, workflow, control evidence, or contract record that downstream teams rely on. Improvement is strongest when the same evidence supports multiple needs: certification audits, customer assurance, regulatory mapping, supplier governance, incident reviews, and management review. - Set a review date and a change-trigger rule. - Track findings until closure and connect them to corrective actions or risk acceptance. - Use management review to decide resourcing, risk appetite, scope changes, and evidence quality. Sources for this answer: - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - [ISO/IEC 27035-2:2023 standard page](https://www.iso.org/standard/78974.html?ref=sorena.io) - Primary ISO listing for planning, preparing, and lessons-learned guidance. ## Primary sources - [ISO/IEC 27035-1:2023 standard page](https://www.iso.org/standard/78973.html?ref=sorena.io) - Primary ISO listing for incident management principles and process. - Quote: "preparing for, detecting, reporting, assessing, and responding to incidents" - [ISO/IEC 27035-2:2023 standard page](https://www.iso.org/standard/78974.html?ref=sorena.io) - Primary ISO listing for planning, preparing, and lessons-learned guidance. - Quote: "plan and prepare for incident response and to learn lessons" - [ISO/IEC 27035-3:2020 standard page](https://www.iso.org/standard/74033.html?ref=sorena.io) - Primary ISO listing for ICT incident response operations guidance. - Quote: "information security incident response in ICT security operations" - [Directive (EU) 2022/2555 (NIS2)](https://eur-lex.europa.eu/eli/dir/2022/2555/oj?ref=sorena.io) - Binding EU cybersecurity directive used for regulatory comparison. - Quote: "measures for a high common level of cybersecurity" ## Related Topic Guides - [ISO/IEC 27035 Compliance Guide](/artifacts/global/iso-27035/compliance.md): ISO/IEC 27035 Compliance for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 CSIRT Roles FAQ](/artifacts/global/iso-27035/faq/csirt-roles.md): How should teams handle CSIRT Roles under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 Escalation FAQ](/artifacts/global/iso-27035/faq/escalation.md): How should teams handle Escalation under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 Event vs Incident FAQ](/artifacts/global/iso-27035/faq/event-vs-incident.md): How should teams distinguish a security event from an information security incident under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 Evidence Log Template and Workflow](/artifacts/global/iso-27035/evidence-log-template.md): ISO/IEC 27035 Evidence Log Template for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Incident Lifecycle Guide](/artifacts/global/iso-27035/incident-lifecycle.md): ISO/IEC 27035 Incident Lifecycle for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Incident Lifecycle Workflow](/artifacts/global/iso-27035/incident-lifecycle-workflow.md): ISO/IEC 27035 Incident Lifecycle Workflow for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Incident Management FAQ](/artifacts/global/iso-27035/faq.md): ISO/IEC 27035 FAQ for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Incident Response Playbook](/artifacts/global/iso-27035/incident-response-playbook.md): ISO/IEC 27035 Incident Response Playbook for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Incident Severity and Escalation Matrix](/artifacts/global/iso-27035/incident-severity-and-escalation-matrix.md): ISO/IEC 27035 Incident Severity and Escalation Matrix for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Incident Timer Workflow Template and Workflow](/artifacts/global/iso-27035/incident-timer-workflow.md): ISO/IEC 27035 Incident Timer Workflow for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Lessons Learned FAQ](/artifacts/global/iso-27035/faq/lessons-learned.md): How should teams handle Lessons Learned under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 Notification Evidence FAQ](/artifacts/global/iso-27035/faq/notification-evidence.md): How should teams handle Notification Evidence under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 Notification Threshold Mapping Guide](/artifacts/global/iso-27035/notification-threshold-mapping.md): ISO/IEC 27035 Notification Threshold Mapping for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 Post Incident Review FAQ](/artifacts/global/iso-27035/faq/post-incident-review.md): How should teams handle Post Incident Review under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 Retained Logs FAQ](/artifacts/global/iso-27035/faq/retained-logs.md): How should teams handle Retained Logs under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 Severity Classification FAQ](/artifacts/global/iso-27035/faq/severity-classification.md): How should teams handle Severity Classification under ISO/IEC 27035? Practical answer with owners, evidence, review triggers, and external source references. - [ISO/IEC 27035 vs ISO 22301 Comparison](/artifacts/global/iso-27035/iso-27035-vs-iso-22301.md): ISO/IEC 27035 vs ISO 22301 for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 vs NIST SP 800-61 Comparison](/artifacts/global/iso-27035/iso-27035-vs-nist-800-61.md): ISO/IEC 27035 vs NIST SP 800-61 for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. - [ISO/IEC 27035 vs NIST SP 800-61 Rev. 3 Comparison](/artifacts/global/iso-27035/iso-27035-vs-nist-800-61r3.md): ISO/IEC 27035 vs NIST SP 800-61 Rev. 3 for ISO/IEC 27035 Information Security Incident Management: practical decisions, evidence, owners, review cadence, and source-linked implementation guidance. --- [Privacy Policy](https://www.sorena.io/privacy) | [Terms of Use](https://www.sorena.io/terms-of-use) | [DMCA](https://www.sorena.io/dmca) | [About Us](https://www.sorena.io/about-us) (c) 2026 Sorena AB (559573-7338). 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