FIRESTA
About the organisation
Firesta-FiΕ‘er, a.s. is a Czech construction company based in Brno, established in 1990, specializing in transport infrastructure, including bridge, road, and railway construction. With over 600 employees, the company also operates in Slovakia, Poland, and Romania.
What the listing means
FIRESTA appeared on the Deadlock leak site on 10 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 75 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing FIRESTA as suspicious β leaked data gets weaponised for phishing within days.
- If you hold an account on www.firesta.cz, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- 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 β check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/RklSRVNUQUBEZWFkbG9jaw==
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
