failed authentication

[/feɪld ɔːˌθɛntɪˈkeɪʃən/]
noun phrasepl: failed authentications
autenticação falha
1. The unsuccessful attempt to verify the identity of a user, device, or system through credentials such as passwords, biometric data, or security tokens
The system rejected the login attempt due to failed authentication.
O sistema rejeitou a tentativa de login devido à autenticação falha.
2. A security event where provided credentials do not match the stored information in an authentication system
Multiple failed authentications triggered the account lockout mechanism.
Múltiplas autenticações falhadas acionaram o mecanismo de bloqueio de conta.
This is a predominantly technical term used in IT and cybersecurity contexts in both Brazil and the USA. It is commonly encountered in error messages, security logs, and system notifications. The term has become standardized across both Portuguese-speaking regions and English-speaking countries due to the global nature of computing and information technology.
Synonyms / Sinônimos
authentication failurefailed logininvalid credentialsauthentication error
Antonyms / Antônimos
successful authenticationvalid authenticationgranted access

Regional Variations

General Brazilian
autenticação falha
Standard term used in Brazilian tech and IT contexts
São Paulo
autenticação falha
Predominant usage in major tech hubs
Portugal
autenticação falhada
European Portuguese variant using 'falhada' instead of 'falha'
Rio de Janeiro
autenticação falha
Consistent with Brazilian standard terminology

Related Words

credentialspasswordtwo-factor authenticationbiometric authenticationaccess deniedlogin attempt

Related Idioms & Phrases

access denied
locked out
wrong password
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