Username Rules for Security & Authentication
Security-related terms like login, password, and verify that could be exploited for phishing and credential theft.
Why These Usernames Are Reserved
Security terms are weapons for phishing. A message from @verify saying "click here to confirm your account" looks legitimate. Handles like @login, @password, @secure, and @authenticate appear in thousands of social engineering attacks. Blocking these prevents attackers from gaining credibility through username selection.
Common Examples
API Enforcement
Check usernames in this category programmatically:
Related Pages
Username Rules
Browse all rule categories
Reserved Usernames
Overview of reserved usernames
Username Rules for System & Infrastructure
Technical usernames like admin, root, and api that platforms block to prevent conflicts with core functionality and administrative access.
Username Rules for Government & Official Entities
Government agencies, law enforcement, regulatory bodies, and official institutional identifiers.