Unverified50% confidenceFactExact time

SP 800-63B-4 is not a mandatory law, but it is widely adopted by U.S. federal agencies and has become a de facto reference standard for the design of identity authentication products worldwide.

1

Sources

50%

Confidence

Long-term

Relevance

11/3/2026

First Seen

Sources

NIST 800-63B-4 Retires Security Questions: Four Alternatives

Related Entities

SP 800-63B-4concept United States federal agenciescompany

Related Claims

UnverifiedForeign entities placed on the BIS Entity List must obtain a special license in advance when acquiring U.S. technology subject to the EAR, and applications are reviewed under a presumption of denial.60% similar

Cite This Claim

Stable URI

https://kongchang.com/claim/1131506

API

curl https://kongchang.com/api/v1/knowledge/claims/1131506

MCP

get_claim(id=1131506)