one-time code

Single-use authentication token

A one-time code is a temporary password or verification number valid for a single use, typically sent via text message or email to confirm identity: Enter the one-time code we sent to your phone.

Common in two-factor authentication and account recovery, these codes expire quickly—usually within minutes—to prevent interception and reuse.

Related
  • OTPDisposable login credential
  • passwordAuthentication string
  • verificationProving something accurate
  • PINAuthentication number sequence
  • tokenRepresentative placeholder

authentication · SMS · text message · login · sign in · temporary · expire · security · digits · text · mobile · phone number · confirm · access · validate · single-use · authenticator · 2FA

Categories
Opposites
temporal validity/reusability

one-time codemaster password

Credential unlocking credential storage

authentication approach

one-time codebiometric authentication

Identity verification via body traits

fingerprint scan · facial recognition · retinal scan · security question · voice recognition

Family

time, code, once, ones, timed, times, timer, timers, timing

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G