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Adaptavist Group LTD

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Adaptavist Group LTD. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.

-34days
t1 · Published t2 · Disclosed
Mar 23, 2026Feb 17, 2026
Country
United Kingdom
Business Category
IT
Employees
+1000
Discovered
2026-04-08
Published
March 23, 2026
Disclosed / Notified
Feb 17, 2026
Victim ID
3kxaJ3TlBzIG

Attack Summary

Adaptavist Group LTD is a British platinum Atlassian partner and enterprise software developer serving Fortune 500 clients including NASA, Visa, Deutsche Bank, and government organizations. The company's flagship product is ScriptRunner for Atlassian Jira, Confluence, and Bitbucket. Complete infrastructure compromise: source code of all products (ScriptRunner, Salable licensing platform), 484,220 customer records from HubSpot CRM (GDPR violation), 20,000+ legal tickets with 33,000 documents including 2,000 NDAs and contracts, 3TB+ from Nexus repositories (production secrets, Docker images, Helm charts), Kubernetes, OAuth credentials, Snowflake Data Warehouse, Confluence (24,547 pages, 100+GB documentation), production databases. Licensing system compromised enabling product cloning.

Leak Screenshots

SAMPLE

Proof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for adaptavist.com — indexed by HaveIBeenRansom.
40
found in Infostealer logs
1,686+
found in Traditional breaches
81+
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
SevenRooms_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
Televerde
play · ransomware
••• emails
Untitled leak
— · breach
••• emails
+ 17 more leak sources locked
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Legal Disclaimer: This ransomware victim record reflects information published on the operator's leak site. Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.