Trellix confirms data breach after hack of 'a portion' of its source code

Date:
Tue, 05 May 2026 09:54:28 +0000

Description:
Key details are still missing, but Trellix says it found no evidence of
source code release or distribution process being affected.

FULL STORY ======================================================================Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Trellix discloses unauthorized access to part of its source code repository Investigators found no evidence of disruption or exploitation of its release processes Key details remain unclear, with the company promising further updates once the probe concludes Cybersecurity giant Trellix has confirmed suffering a cyberattack in which threat actors accessed parts of its source code.

In a brief announcement published on its website, Trellix said it had identified unauthorized access to a portion of [its] source code repository. As soon as it spotted the intrusion, the company brought in third-party security experts to resolve the problem, and notified relevant authorities.
It also said the breach has not yet caused any disruptions whatsoever: Based on our investigation to date, we have found no evidence that our source code release or distribution process was affected, or that our source code has
been exploited, it said. As part of our commitment to our broader security community, we intend to share further details as appropriate once our investigation is complete. Article continues below You may like Vercel confirms data breach LexisNexis confirms data breach, says hackers hit customer and business info CheckMarx admits it was hit by major cyberattack that saw data leaked onto Dark Web Key details missing Some key details are still missing. We dont know who struck Trellix, or how they did it. It is
also unknown whether or not the attackers exfiltrated any sensitive data, or if they tried to extort the company for money. No one claimed responsibility for the attack just yet, and Trellix said it would share further details as appropriate once the investigation wraps up.

Trellix emerged in 2021 after McAfee Enterprise and FireEye merged - and as such, it does not have a long standalone breach history. However, FireEye was hit by a major, high-profile attack before the merger.

In 2020, FireEye suffered one of the most notable cybersecurity firm breaches ever, in which the attackers (most likely state-sponsored) stole the companys internal red-team tools. These are the same tools used to simulate real-world attacks, and the breach was later linked to the broader SolarWinds
cyberattack campaign.

FireEye publicly admitted the breach and even released countermeasures to blunt misuse of the stolen tools. Are you a pro? Subscribe to our newsletter Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed! Contact me with news
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