Cisco Secure Client - Socket Filter
Cisco Secure Client - Socket Filter is a macOS network extension used by Cisco Secure Client to filter socket traffic for VPN and security features.
What is Cisco Secure Client - Socket Filter?
Cisco Secure Client - Socket Filter is a macOS networking component installed with Cisco Secure Client. It helps Cisco Secure Client apply VPN and security functions that depend on filtering network traffic at the socket level on modern versions of macOS. Users commonly encounter it when approving system or network extensions during setup, especially for enterprise access, DNS protection, secure web gateway, and related secure access workflows. It is not a standalone consumer app with its own everyday interface; instead, it works in the background as part of Cisco’s broader secure connectivity and security tooling. On managed work Macs, organizations may require it so company traffic protection and access policies work correctly.
Key features
- Enables socket-level network filtering for Cisco Secure Client on macOS
- Supports VPN and secure access workflows used by organizations
- Works with Cisco security modules that inspect or protect DNS and web traffic
- Runs in the background as a macOS network extension
- Integrates with enterprise deployment and management on managed Macs
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Safety overview
Status: Mostly safe
This is a legitimate Cisco networking component that operates at a deep level in macOS so Cisco Secure Client can manage protected network traffic. That level of access is normal for VPN and web security software, but it also means network features from your organization may stop working if you disable or remove it. Keep it if you use Cisco Secure Client for work, school, or managed-device access. If you no longer use Cisco Secure Client, remove it by uninstalling the parent Cisco software instead of deleting parts manually.
Recommendation: Keep this item if Cisco Secure Client is installed or your Mac connects to a work or school network that depends on Cisco security features. If you have fully stopped using Cisco Secure Client, uninstall the parent app through its normal uninstaller or your IT-managed removal process so related components are removed cleanly.
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