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MASTEC.COM

clop

This record tracks a ransomware attack claimed by the clop group against MASTEC.COM. 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.

228days open
t1 · Published t2 · Pending
Oct 31, 2025Not disclosed yet
Country
United States
Business Category
Energy
Employees
101-1000
Discovered
2025-10-31
Published
October 31, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
gHETUCpIaA9j

Attack Summary

[AI generated] MasTec, Inc. is a leading American infrastructure construction firm. Founded in 1929 and currently headquartered in Coral Gables, Florida, MasTec delivers a range of services across different industries including electricity, oil and gas, technology, and telecommunications. Its wide array of services include engineering, building, installation, maintenance, upgrade of energy, utility, and communications infrastructure.

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
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found in Traditional breaches
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found in Ransomware leaks
Emails exposed
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••• emails
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Visit Website Original Post View Group: clop

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