cvpnd.exe is Cisco's VPN client. Virtual Private Network applications allow you to connect to remote servers with either encrypted or unencrpted connections. More information about this client can be found here.

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Simple to deploy and operate, the Cisco VPN Client allows organizations to establish end-to-end, encrypted VPN tunnels for secure connectivity for mobile employees or teleworkers. This thin design, IP security (IPSec)-implementation is compatible with all Cisco virtual private network (VPN) products.