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Chap Apr 2026

It uses a variable "challenge" value that changes every time, stopping hackers from simply copying and repeating an old login attempt.

To help provide the exact breakdown or resource you need, could you please clarify you are looking at? It uses a variable "challenge" value that changes

1. Network Security: CHAP (Challenge Handshake Authentication Protocol) It uses a variable "challenge" value that changes

CHAP allows a user to prove their identity without ever sending their actual password over the network. It uses a variable "challenge" value that changes

Unlike protocols that only check your credentials at the start, CHAP can run silent periodic checks mid-session to make sure no one has hijacked the connection. 🤝 How the 3-Way Handshake Works