Claude Agent Skills could be used to deploy malware, researchers say

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December 3, 2025 at 2:34 PM

Summary

Researchers have identified a potential cybersecurity threat where attackers could create and distribute a malicious Skill that can stealthily retrieve external scripts. This poses a significant risk as it could lead to unauthorized access and exploitation of systems using such Skills.

Original Article Summary

An attacker could distribute a malicious Skill that quietly retrieves external scripts.

Impact

Skills deployed on platforms that support Claude Agent functionalities

In the Wild

Unknown

Timeline

Newly disclosed

Remediation

Users should avoid installing Skills from untrusted sources and ensure that their systems are updated with the latest security patches.

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