Is Cisco Umbrella Chromebook client (Ext) safe?

Clean risk

Enterprise DNS filtering extension that communicates with a local companion app to block access to malicious domains. Contains a postMessage listener without origin validation that accepts control messages from a companion Chrome app.

Cisco Systems, Inc.v1.3.4Chrome Web Store
0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

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Updated 18 May 2026jcdhmojfecjfmbdpchihbeilohgnbdci