Unverified60% confidenceFactExact time
Authenticator apps such as Google Authenticator use the TOTP (Time-based One-Time Password) algorithm to generate a 6-digit dynamic verification code every 30 seconds based on the account key and the current timestamp.
2
Sources
60%
Confidence
Long-term
Relevance
7/6/2026
First Seen
Sources
Related Claims
UnverifiedGoogle Authenticator adopts the RFC 6238 standard (TOTP).69% similarUnverifiedTraditional MFA based on TOTP codes or push notifications can be bypassed when attackers set up reverse-proxy phishing pages to forward codes in real time or induce users to approve.64% similarUnverifiedThe OTP is usually sent to email as a 6-digit number, expires in 1 minute, and is used in three scenarios: post-registration email verification, optional login two-factor verification, and password reset.63% similarUnverifiedAn account session credential (Token) is an encrypted string issued by the server to the browser after a user successfully logs in, used to prove that the visitor has passed identity verification.63% similarUnverifiedWebhook signature verification typically uses the HMAC-SHA256 algorithm, with the signature covering the timestamp and request body content, and the receiver locally recomputes the signature with the shared secret and compares it.62% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/113071API
curl https://kongchang.com/api/v1/knowledge/claims/113071MCP
get_claim(id=113071)