passcode
Digital lock combination
A passcode is a sequence of characters—usually numbers—used to verify identity or gain access to something.
Unlike passwords, which typically mix letters and symbols, passcodes are often purely numeric: Enter your four-digit passcode.
The term is especially common for phone unlock codes and security systems.
Authentication number sequence
- entryAccess or submission
- unlockOpen a secured closure
- keypadButton array for input
- doorHinged room barrier
gate · combination · digits · safe · checkpoint · turnstile · barrier · swipe
Authentication act or screen
- verifyConfirm accuracy or truth
- credentialsEvidence of qualification or identity
- identityWho someone is
- biometricsBody-based identity verification
two-factor · token · authenticator · sign-in · validation · authorize · user · fingerprint
Hidden writing system
- cryptographyScience of secure messaging
- algorithmFinite problem-solving procedure
- keyLock-opening device
- hashingOne-way data transformation
scramble · secure · digital · encrypted · plaintext · ciphertext · obfuscate · decrypt
PIN
Authentication number sequence
door · gate · combination · digits · safe · checkpoint · turnstile · barrier · swipe · punch-in
login
Authentication act or screen
- verifyConfirm accuracy or truth
- credentialsEvidence of qualification or identity
- identityWho someone is
biometrics · two-factor · token · authenticator · sign-in · validation · authorize · user · fingerprint · facial
cipher
Hidden writing system
- cryptographyScience of secure messaging
- algorithmFinite problem-solving procedure
- keyLock-opening device
hashing · scramble · secure · digital · encrypted · plaintext · ciphertext · obfuscate · decrypt · bitwise
protection
Guarding against harm
firewall · defense · breach · hack · intrusion · theft · compromise · vulnerability · attack · brute-force
secret
Concealed information
- confidentialMeant to stay secret
- personalRelating to one's self
- hiddenKept out of sight
private · concealed · undisclosed · discreet · covert · sensitive · protected · anonymous · secure · classified
- codesbinary, DNA, RNA, cipher, barcode
- access codeskeycode, combination, safe combination, screen lock
- Mobile Devicessmartphone, cell phone, tablet, iPhone, iPad
- iOS FeaturesAirPlay, App Store, FaceTime, Apple ID, AirDrop
- accessaccess, authorization, credentials, exclusive access, insider access
- accountaccount, login, profile, username, logout
passcodebiometric
Measuring unique physical characteristics
fingerprint · facial recognition · iris scan · voice recognition · smart card
passcodelockout
Employer-imposed work stoppage
access denied · blocked · restricted · unauthorized · rejection