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BookBlock

fulcrumsec

This record tracks a ransomware attack claimed by the fulcrumsec group against BookBlock. 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.

122days open
t1 · Published t2 · Pending
May 01, 2026Not disclosed yet
Country
United Kingdom
Business Category
Retail / E-commerce
Employees
0-50
Discovered
2026-05-01
Published
May 01, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
OcXZ2nG0XJFR

Attack Summary

[AI generated] BookBlock is a UK-based premium printing and bookbinding company specializing in high-quality custom notebooks, journals, books, and printed products. It serves both businesses and individual consumers, offering bespoke design and manufacturing services. Operating in the print and publishing industry, BookBlock is known for its craftsmanship and attention to detail, producing products for corporate clients, publishers, and retail customers across the United Kingdom and internationally.

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 bookblock.com — indexed by HaveIBeenRansom.
9
found in Infostealer logs
29+
found in Traditional breaches
0+
found in Ransomware leaks
linkedIN_2.7z.001
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Canva_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Canva_BF_.7z.001
Database World ROC · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
— · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
+ 8 more leak sources locked
Leak volumes are locked
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Visit Website Original Post View Group: fulcrumsec

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