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MIMS

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against MIMS. 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.

126days open
t1 · Published t2 · Pending
Apr 27, 2026Not disclosed yet
Country
Singapore
Business Category
Healthcare / Pharma
Employees
101-1000
Discovered
2026-05-06
Published
April 27, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
mp2LBXQC34UO

Attack Summary

mims.com zoominfo.com/c/mims-pte-ltd/354424916 MIMS is a pharmaceutical prescribing reference guide first published in the United Kingdom in 1959 by Haymarket Media Group. The platform provides comprehensive drug information — including dosages, interactions, clinical guidelines, and prescribing data — for healthcare professionals across the globe. MIMS operates internationally across Asia, Australia, and beyond, with dedicated editions for countries including Malaysia, India, Indonesia, Japan, Singapore, and many others. Its mobile app and online database are used daily by doctors and pharmacists for drug lookups, medical news, and CME articles

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 mims.com — indexed by HaveIBeenRansom.
7,212
found in Infostealer logs
732+
found in Traditional breaches
41+
found in Ransomware leaks
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+ 17 more leak sources locked
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