On March 14, 2024, the accounting firm SBM & Co. appeared on the LockBit 3.0 ransomware leak site. The listing states that internal files were exfiltrated during a ransomware attack on the company, which provides accountancy, tax advice, and specialist support to art dealers, charities, manufacturers, retailers, and private clients across the UK.
Already exposed?
You can’t unleak data. You can take away what it’s worth.
A leaked record is where it starts, not where it ends. What turns it into your front door is the look-up sites publishing your address beside your name — and those are what an AI reads when somebody asks about you. The free scan shows you both. We write to 582 companies.
See what is exposed about you — free scan →Not ready yet? Run a free breach check on this email
We’ll check it against 13.1B+ leaked records right now — no account needed. Continuous monitoring & alerts are part of Protection.
Reported Details from the Listing
The LockBit 3.0 leak page, still active on the onion address at the time of disclosure, claims that data was stolen from sbmandco.com and will be published unless a ransom is paid. The entry does not specify the volume of records affected, the exact file types involved, or the deadline for payment. It simply lists the company name, a short description of its services, and states that internal files were taken following a successful ransomware deployment. No client list, financial spreadsheets, or tax returns are described in the public portion of the posting, though the threat actor typically releases samples to pressure victims.
Why This Matters for You and Your Family
If you or any member of your family has used SBM & Co. for tax returns, accountancy advice, or specialist sector support, your personal financial records may now sit in an attacker’s archive. Even when exact record counts remain unknown, the exposure of internal files in these incidents routinely includes names, addresses, dates of birth, National Insurance numbers, income details, and banking references. Once such data leaves the firm’s control, it can be sold quietly on underground forums long after the ransomware drama fades. For ordinary households this translates into heightened risk of identity theft, fraudulent loan applications, and targeted phishing campaigns that reference your real tax history.
The Doxxing and Identity-Chain Risks
Ransomware leaks like this one rarely stop at the initial data set. Threat actors and subsequent buyers routinely cross-reference stolen documents against other breaches to build complete identity profiles. An accountant’s file that links your name to an email address, phone number, and children’s dates of birth becomes a powerful pivot point for doxxing chains. These chains often surface on gaming platforms, social media, and people-search sites, exposing your family to harassment, SIM-swapping attacks, and account takeovers. Credential leaks from related services frequently cascade into gaming accounts belonging to you or your children, turning one professional breach into persistent household exposure.