mastercorp
blackbastaThis record tracks a ransomware attack claimed by the blackbasta group against mastercorp. 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
MasterCorpBusiness Services · Tennessee, United States · 1,000 EmployeesHeadquarters 3505 N Main St, Crossville, Tennessee, 38555, United StatesPhone Number (931) 484-1752Website www.mastercorp.comRevenue $217.8MA leader in cleanliness since 1981, today MasterCorp is considered the most trusted name in hospitality services. We partner with premier resorts and developers nationwide and lead the industry, not only in size, but in innovation, performance, and customer satisfaction.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.