RansomHouse Claims Responsibility for Trellix Cybersecurity Breach

RansomHouse hacks Trellix, targets source code, but no compromise found. Links to TeamPCP, Lapsus$ attacks on security firms possible.

By Content Team

May 9, 2026

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The RansomHouse ransomware group claimed responsibility for hacking cybersecurity firm Trellix, targeting part of the company's source code repository. Trellix confirmed the breach this week but stated no evidence suggests their source code distribution was compromised or exploited.

RansomHouse posted screenshots on Thursday showing access to Trellix's internal services and management dashboards, though they haven't specified what data was stolen. The timing suggests possible links to recent supply chain attacks by TeamPCP and Lapsus$ that hit other security firms like Checkmarx and Bitwarden.

RansomHouse, active since 2022, operates as ransomware-as-a-service and has listed over 170 victims on their leak site.

Source: SecurityWeek

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