Major outage root-cause analyses

Identifies major outage root-cause analyses patterns in security and access control contexts. Detects potential exposure of sensitive security information in Australian systems.

Type: regex
Engine: boost_regex
Confidence: medium
Confidence justification: category-aware structural regex with anchor and context constraints replaces phrase-only detection.
Detection quality: Mixed
Jurisdictions: au
Regulations: NDB Scheme (Cth), SOCI Act 2018 (Cth), TIA Act 1979 (Cth)
Frameworks: CIS Controls, DISP, ISO 27001, NIST CSF, PCI-DSS, SOC 2
Data categories: credentials, security
Scope: wide
Platform compatibility: Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Degraded, Netskope: Unsupported

Pattern

(?is)\b(?:major\s+outage|root\s+cause\s+analysis|post[\s-]+incident\s+review|service\s+disruption|incident\s+report|corrective\s+action|contributing\s+factor|impact\s+assessment|lessons\s+learned)\b

Corroborative evidence keywords

major outage root-cause analyses, major, outage, root, cause, analyses, operations, resilience, SCADA, PLC, DCS, HMI, Modbus, Modbus TCP, Modbus RTU, DNP3, OPC-UA, OPC Classic, IEC 61850, IEC 60870 (+10 more)

Proximity: 300 characters

Should match

major outage — Primary topic phrase match
root cause analysis — Case-insensitive topic phrase match
post-incident review — Alternative topic phrase match
service disruption — Additional topic phrase match

Should not match

unrelated generic text without domain phrases — No relevant topic phrases present
placeholder value 12345 — Random text should not match topic-specific regex
backup outage — Generic word pair from old broad template should not match

Known false positives

Authentication-related terminology in software documentation, security training materials, or system architecture descriptions without actual credentials. Mitigation: Require proximity to credential-specific patterns (API keys, connection strings, tokens) rather than general security terminology.
Code snippets and configuration examples containing credential-related keywords or placeholder values in developer documentation. Mitigation: Check for common placeholder patterns (example.com, localhost, 0000) and documentation file types to reduce false positives from technical writing.

References

https://www.cyber.gov.au/resources-business-and-government/essential-cyber-security/ism
https://www.homeaffairs.gov.au/about-us/our-portfolios/emergency-management
https://www.disasterassist.gov.au/
https://www.oaic.gov.au/privacy/australian-privacy-principles-guidelines/chapter-11-app-11-security-of-personal-information