JB Brown & Sons
sinobiThis record tracks a ransomware attack claimed by the sinobi group against JB Brown & Sons. 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
J.B. Brown Sons is a commercial property management and development company based in Portland, Maine, with over 200 years of experience in real estate. The company specializes in owning, leasing, and managing a variety of commercial properties, including office, warehouse, manufacturing, retail, and mixed-use buildings. Aimed at long-term stable growth, J.B. Brown Sons offers responsive services to assist tenants with their commercial space needs. Their portfolio of properties and development projects reflects their deep-rooted presence in the Greater Portland area.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.