Two-Factor Authentication (2FA):
The rising vulnerability of passwords has led to the adoption of Two-Factor Authentication (2FA) worldwide. Popular apps like Google Authenticator now use TOTP-based codes that refresh every 30 seconds to enhance digital security.It is a security mechanism that requires users to verify identity using two different factors something they know (password) and something they have (phone/authenticator app). Developed by Concept of multi-factor authentication emerged in the 1980s in computer science security research. TOTP standard (Time-based One-Time Password) was developed by IETF (Internet Engineering Task Force) in 2011 for global interoperability. Objective is to strengthen authentication, prevent account breaches, and ensure data security by adding a second verification layer beyond traditional passwords.
