A secure channel is a communications path between two or more parties that is protected against eavesdropping, tampering, or other unauthorized access. Secure channels are used to protect sensitive information, such as financial data, medical records, and trade secrets.
There are a number of different ways to create a secure channel. One common method is to use encryption, which converts data into a form that cannot be read without the correct decryption key. Another method is to use a virtual private network (VPN), which creates a private network over a public network.