Password Authentication Protocol

nounid 3513·updated May 9, 2026

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Password Authentication Protocol is a simple, weak authentication mechanism where a user enters the password and it is then sent across the network, usually in the clear.

MWE

Classifications

per-axis with provenance

Entity Type

Credential95%rule-basedr:entity.credential.password.v1

Sensitivity

unclassified

Information Class

unclassified

Variants

4 surface forms

acronym: PAP
plural: Password Authentication Protocols
possessive: Password Authentication Protocol's
pluralpossessive: Password Authentication Protocols'

Framework definitions

1 sense across 1 framework

SANS Glossary of Security Terms1 senseview framework →

§1: Password Authentication Protocol is a simple, weak authentication mechanism where a user enters the password and it is then sent across the network, usually in the clear.

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Incoming relationships

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