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Victim Claim

Trellix (McAfee & FireEye)

ransomhouse 🇺🇸 United States Technology www.trellix.com
Claimed by ransomhouse
Listed on leak site 08 May 2026
Reported attack date 17 Apr 2026
Group claims tracked 11
Unverified claim. This entry reproduces a listing published by the ransomhouse group on its own extortion site. Attackers routinely exaggerate or fabricate victims. Nothing here confirms that Trellix (McAfee & FireEye) suffered a breach, or what data was actually taken.

About the organisation

Trellix is a global cybersecurity company formed from the October 2021 merger of McAfee Enterprise and FireEye. It provides services to over 50,000 business and government customers worldwide, protecting more than 200 million endpoints. The companys open and native extended detection and response (XDR) platform helps organizations confronted by todays most advanced threats gain confidence in the protection and resilience of their operations. Trellix, along with an extensive partner ecosystem, accelerates technology innovation through machine learning and automation to empower over 40,000 business and government customers with living security

What the listing means

Trellix (McAfee & FireEye) appeared on the ransomhouse leak site on 08 May 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated — the attack itself is dated 17 April 2026, 21 days before the listing. This group has published 2 claims in the last 30 days and remains active.

Recommended actions

  • Treat any unsolicited message referencing Trellix (McAfee & FireEye) as suspicious — leaked data gets weaponised for phishing within days.
  • If you hold an account on www.trellix.com, 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/VHJlbGxpeCAoTWNBZmVlICYgRmlyZUV5ZSlAcmFuc29taG91c2U=

Show leak-site screenshot

Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.

Screenshot of the ransomhouse leak-site listing for Trellix (McAfee & FireEye)