CSA Tax & Advisory
lynxThis 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 GAPWindow 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.
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
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.