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CPI Books

medusa

This record tracks a ransomware attack claimed by the medusa group against CPI Books. 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.

466days open
t1 · Published t2 · Pending
Mar 06, 2025Not disclosed yet
Country
United Kingdom
Business Category
Communication / Marketing
Employees
101-1000
Discovered
2025-03-09
Published
March 06, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
PtPb5MhCOUQQ

Attack Summary

CPI Books is the UK’s book printing service provider. CPI produces books and journals across multiple channels including; Trade, STMA, Tax, Law, Bibles, Catalogues, as well as Self-Publishing. Cpi Uk corporate office is located in Copland Way, Beccles, Norfolk, NR34 7TL, United Kingdom and has 2,500 employees. The total amount of data leakage is 183.20

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

Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
Emails exposed
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External
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Distinct leaks
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••• emails
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••• emails
Full exposure is locked
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Original Post View Group: medusa
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.