MB Contabilidade
vectThis record tracks a ransomware attack claimed by the vect group against MB Contabilidade. 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
MB Contabilidade is an established accounting firm operating in Matias Barbosa, Minas Gerais, Brazil, with over 55 years of experience transforming corporate accounting management. The company offers comprehensive services including payroll management, financial consulting, BPO Financeiro, and assistance with CNPJ registration and tax compliance for businesses in the region. It specializes in serving the health sector and provides tailored financial studies to help clients reduce taxes securely while ensuring regulatory adherence. MB Contabilidade was listed as a ransomware victim associated with the threat actor vect.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.