People search The Adaptavist Group data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 The Adaptavist Group-linked incident. This page maps every attested event through 2026 with internal links to canonical records.
Why The Adaptavist Group breach history matters
The Adaptavist Group operates in Technology (United Kingdom). Across indexed rows, recurring themes include ransomware and extortion, credential theft and social engineering, 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
2026 — unauthorized access via stolen credentials; TheGentlemen ransomware claims disputed by firm
Unverified claim — treat actor counts cautiously. The Register reported UK-based Adaptavist Group as investigating an “IT security incident” detected after late-March 2026 activity in which an intruder leveraged compromised login details across portions of its environment (the consultancy builds tooling and services atop Atlassian Jira/Confluence ecosystems). Adaptavist’s CEO circulated a customer letter framing forensic investigation and asserting no confirmed evidence that customer/partner personal data had been compromised. Concurrently TheGentlemen ransomware Exposed categories include Potential internal/source/credential material per actor chatter; vendor disputed customer PII exfiltration in early statements. No attested victim count is published for this row yet. See the adaptavist-group 2026 record and canonical BreachHistory entry.
Patterns and analysis
- Ransomware and extortion — appears across multiple The Adaptavist Group catalog entries; prioritize controls that address this class of failure.
- Credential theft and social engineering — appears across multiple The Adaptavist Group catalog entries; prioritize controls that address this class of failure.
- Unverified actor or scraping claims — appears across multiple The Adaptavist Group 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 The Adaptavist Group company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/adaptavist-group · Latest: adaptavist-group2026.
Sources: BreachHistory catalog (1 row for The Adaptavist Group), company and regulator disclosures cited in individual breach records.