Internet security is no longer optional; it is essential for survival. Every day, we input sensitive information—addresses, phone numbers, bank card data, and Crypto Assets Wallet information—on various platforms. However, most services still rely solely on usernames and passwords for protection, which this single line of defense is being easily breached by attackers. The hacking of Ethereum co-founder Vitalik Buterin's X account in 2023 is clear evidence of this—hackers used phishing methods to steal approximately $700,000 from user wallets, fully exposing the vulnerabilities of traditional identification.
This is why two-factor authentication (2FA) has been upgraded from an optional tool to a necessary defense line. It builds a second wall of protection for digital assets, making it impossible for criminals to succeed even if they steal your password.
The core principle of two-factor authentication
The working logic of two-factor authentication