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Corpus/Sparks/Triggers for Reviews of Policies.md

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+# Triggers for Reviews of Policies
+
+**From [A 5.35](../Standards/ISO27x/OST/27002/EN/a-5.35-Independent-review-of-information-security.md), Independent review of information security:**
+
+The organization should consider conducting independent reviews when:
+
+a\) laws and regulations which affect the organization change;
+
+b\) significant incidents occur;
+
+c\) the organization starts a new business or changes a current business;
+
+d\) the organization starts to use a new product or service, or changes the use of a current product or service;
+
+e\) the organization changes the information security controls and procedures significantly.
+
+ISO/IEC 27007 and ISO/IEC TS 27008 provide guidance for carrying out independent reviews.
+
+
+## From NotebookLM
+
+The source documents specify several explicit triggers that necessitate the review and updating of an organization's policies, particularly the main information security policy and supporting topic-specific policies.
+
+Key triggers for policy review include:
+
+### 1. Significant Changes
+
+Both the overarching organizational information security policy and specific topic-specific policies must be reviewed when **significant changes occur**.
+
+Specifically, management should review and update information security policies in response to changes in:
+
+- **Regulations, statutes, legislation, and contracts**.
+- **The organization's business strategy**.
+- **The organization's technical environment**.
+- **Information security risks**.
+- **The current and projected information security threat environment**.
+- **The organization itself**, such as starting a new business or changing a current business.
+- **Products or services**, such as starting to use a new product or service, or changing the use of a current one.
+- **Information security controls and procedures**, if they change significantly.
+
+The requirement for independent review of the organization's approach to managing information security (which includes policies) is also triggered **when significant changes occur**.
+
+	### 2. Planned Intervals
+
+In addition to being reviewed when significant changes occur, policies must be reviewed at **planned intervals**.
+
+- The information security policy and topic-specific policies should be reviewed at **planned intervals**.
+- Confidentiality or non-disclosure agreements should be **regularly reviewed**.
+- The organization's approach to managing information security (which includes policies) should be reviewed independently at **planned intervals**.
+- Compliance with the organization’s policies, rules, and standards should be **regularly reviewed**.
+
+### 3. Incidents and Learning
+
+Feedback from incidents and assurance activities also triggers policy review:
+
+- The review should be built on **lessons learnt from information security incidents**.
+- Lessons learned from **information security events and incidents** should be taken into account during the review of the information security policy and topic-specific policies.
+- The evaluation of information gained from information security incidents should be used to update the organization's information security risk assessment and **determine and implement necessary additional controls**. This necessitates policy review if control changes are determined.
+- The organization should consider conducting independent reviews when **significant incidents occur**.
+
+### 4. Management Activities and Audits
+
+Policy reviews are integrated into the management system framework:
+
+- Review and update of policies should take the **results of management reviews and audits** into account.
+- The management review inputs include considering **changes in external and internal issues** (relevant to the ISMS scope), and **changes in needs and expectations of interested parties** (relevant to the ISMS), which inherently requires reviewing the policy for continuing suitability.
+
+When a policy is changed, review and updates of **other related policies** should be considered to maintain consistency.