letter-only authentication

[/ˈlɛtər ˌoʊnli ɔːˌθɛntɪˈkeɪʃən/]
nounpl: letter-only authentications
autenticação apenas com letras
1. A security authentication method that uses only alphabetic characters (letters) as credentials, excluding numbers, symbols, or other character types
The legacy system required letter-only authentication, which made passwords less secure than modern standards.
O sistema legado exigia autenticação apenas com letras, o que tornava as senhas menos seguras do que os padrões modernos.
2. A restrictive password or authentication protocol that accepts exclusively letters from A to Z (uppercase and/or lowercase) without alphanumeric or special characters
Users complained about the letter-only authentication policy because it limited password complexity and strength.
Os usuários reclamaram da política de autenticação apenas com letras porque limitava a complexidade e a força da senha.
This term is primarily used in technical and cybersecurity contexts. In Brazil, it reflects discussions about outdated security systems and the importance of modernizing authentication protocols. It's rarely used in casual conversation and is specific to IT professionals, system administrators, and cybersecurity specialists discussing legacy system limitations.
Synonyms / Sinônimos
alphabetic-only authenticationletter-based authenticationalphabetic authentication
Antonyms / Antônimos
multi-factor authenticationalphanumeric authenticationmixed-character authentication

Regional Variations

General Brazilian
autenticação apenas com letras
standard technical term used in IT documentation
Portugal
autenticação apenas com caracteres alfabéticos
more formal phrasing preferred in European Portuguese
USA Technical
letter-only authentication
primarily used in cybersecurity and IT contexts

Related Words

password authenticationcredential verificationbiometric authenticationsecurity protocol
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