FMZ Tecnologia em Sistemas
About the organisation
FMZ Tecnologia em Sistemas is a Brazilian software company that develops solutions for the book industry. Its main product, HORUS, is an ERP system designed for publishers, bookstores, and distributors. The system helps manage inventory, sales, royalties, and consignment operations. The company has over 15 years of experience and is based in São Paulo, Brazil.
What the listing means
FMZ Tecnologia em Sistemas appeared on the nova leak site on 18 July 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 21 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing FMZ Tecnologia em Sistemas as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on fmz.com.br, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Technology organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/Rk1aIFRlY25vbG9naWEgZW0gU2lzdGVtYXNAbm92YQ==
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
