IPA: /ˈlɒɡɒn/
KK: /ˈlɔːɡɒn/
A process of gaining access to a computer system or network by entering a username and password.
I need to enter my logon details to access my email account.
Logon → The word is formed from "log" (from the verb 'to log', meaning to record or register) and "on" (indicating a state of being active or connected). The term 'logon' refers to the action of registering or connecting to a computer system or network.
Think of 'logging' your entry into a system when you 'turn on' your computer — that's how you remember that 'logon' means to connect or register.