People search CGI data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 CGI-linked incident, with headline counts up to 7K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why CGI breach history matters
CGI operates in Technology. Across indexed rows, recurring themes include zero-day exploitation and malware, unverified actor or scraping claims. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2024 — Confluence exploitation; ~6.6k employee and contractor PII
Cataloged incident. GAO publicly confirmed that CGI Federal, a contractor supporting financial management systems, notified it on 17 January 2024 of a breach touching roughly 6,600 individuals—primarily current and former GAO employees from 2007–2017 plus some GAO business partners. CGI Federal attributed the incident in press statements to exploitation of an Atlassian Confluence vulnerability consistent with CISA’s October 2023 active-exploitation advisory track. GAO described offering identity-theft monitoring to impacted parties. Exposed categories include Federal employee and related contractor PII as characterized in GAO public confirmation. BreachHistory cites approximately 7K+ affected records in this row. See the cgi2024 and canonical BreachHistory entry.
Patterns and analysis
- Zero-day exploitation and malware — appears across multiple CGI catalog entries; prioritize controls that address this class of failure.
- Unverified actor or scraping claims — appears across multiple CGI catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Review OAuth app permissions and revoke unused third-party integrations.
- Step 5: Bookmark the CGI company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/cgi · Latest: cgi2024.
Sources: BreachHistory catalog (1 row for CGI), company and regulator disclosures cited in individual breach records.