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CSA Tax & Advisory

lynx

This record tracks a ransomware attack claimed by the lynx group against CSA Tax & Advisory. 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.

249days open
t1 · Published t2 · Pending
Dec 26, 2025Not disclosed yet
Country
Australia
Business Category
Services
Employees
0-50
Discovered
2025-12-26
Published
December 26, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
DUYi7UpWp3vT

Attack Summary

CSA Tax & Advisory is a licensed accounting firm based in Haverhill, MA, specializing in a wide range of services including personal financial planning, estate planning, and tax services. They cater to business owners, executives, and independent professionals, providing solutions for accounting, payroll, and tax problems. The firm is known for its professional and responsive service, ensuring each client receives personalized attention. With over 75 years of experience, CSA Tax & Advisory aims to help clients navigate complex tax laws and improve their financial well-being

Leak Screenshots

SAMPLE

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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
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••• emails
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••• emails
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Visit Website Original Post View Group: lynx

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