Beyond Passwords: 2FA, U2F and Google Advanced Protection
Troy Hunt
NOVEMBER 14, 2018
The former is a physical device, for example I had one of these old RSA tokens more than a decade ago back in corporate land: When I logged onto the work VPN, I needed to enter not just my Active Directory credentials but also the 6-digit number shown in the token above known as a time-based one-time password (TOTP).
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