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AWS security-ir medium security documentation change

Service: security-ir · 2026-02-25 · Security-related medium

File: security-ir/latest/userguide/document-history-for-the-aws-security-incident-response-user-guide.md

Summary

Added three new changelog entries documenting: 15-minute SLO for case acknowledgment, 5-day response window before case closure, and AWS CLI reference addition.

Security assessment

Documents tightened security incident response timelines (15-minute SLO) and formalizes closure procedures. These changes establish concrete security response expectations and accountability measures.

Diff

diff --git a/security-ir/latest/userguide/document-history-for-the-aws-security-incident-response-user-guide.md b/security-ir/latest/userguide/document-history-for-the-aws-security-incident-response-user-guide.md
index 3c9135daf..fc3b1c026 100644
--- a//security-ir/latest/userguide/document-history-for-the-aws-security-incident-response-user-guide.md
+++ b//security-ir/latest/userguide/document-history-for-the-aws-security-incident-response-user-guide.md
@@ -10,0 +11,3 @@ Change| Description| Date
+[Response Timeline](https://docs.aws.amazon.com/security-ir/latest/userguide/what-to-expect-from-aws-sir-engineers.html)| Updated response timeline to specify 15-minute SLO for case acknowledgment and 5 business days for customer response before case closure.| February 24, 2026  
+[Communication Best Practices](https://docs.aws.amazon.com/security-ir/latest/userguide/communication-best-practices.html)| Updated case closure timeline to specify 5 business days for customer response to critical information requests.| February 24, 2026  
+[AWS CLI reference added in Interacting with Security Incident Response using AWS CloudShell](https://docs.aws.amazon.com/security-ir/latest/userguide/cshell-examples.html)| Added link to the AWS Command Line Interface Reference for AWS Security Incident Response.| February 24, 2026