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How Cortex XDR BIOC Rules Could Become an Attack Surface

ID: 9d115ef4-1ef8-5aa2-a1b5-d6868c667faa

STIX ID: report--9d115ef4-1ef8-5aa2-a1b5-d6868c667faa

Feed Name: The Cyber Express

Threat Score
35/100

Date Published: 2026-03-18

Date Updated: 2026-05-05

Author: Ashish Khaitan

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A study found that Cortex XDR BIOC detection rules—intended to be stored encrypted—can be decrypted and examined, exposing the internal detection logic. This disclosure could enable attackers to reverse-engineer and evade or manipulate endpoint detection, posing a risk across sectors that rely on EDR platforms, though the research does not report widespread active exploitation.

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