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Pre-Shared Key Definition: Pre-Shared Key (PSK) is a method of authentication where both communicating parties share a secret key in advance to establish a secure connection.
A Pre-Shared Key (PSK) in cybersecurity refers to a method of authentication where both communicating parties share a secret key before establishing a secure channel. This key is used to encrypt and decrypt data during communication to ensure privacy and authenticity. PSK is commonly used in securing wireless networks, Virtual Private Networks (VPNs), and cryptographic protocols like Transport Layer Security (TLS).