Back to today’s briefing

Story perspectives

California's AB 566 Aims for National Data Privacy Standard

11/8/2025

40 8

Summary

Story summary

California Assembly Bill 566 (AB 566) will require web browsers to implement an opt-out signal to prevent data sharing.
The measure takes effect in 2027 and seeks a national data privacy standard.
Privacy advocates support AB 566, which requires Google and Microsoft to comply.
Critics warn of pushback and effectiveness concerns as AB 566 builds on California’s existing protections and could expand rights.

1 of 1

Story summary

California Assembly Bill 566 (AB 566) will require web browsers to implement an opt-out signal to prevent data sharing.
The measure takes effect in 2027 and seeks a national data privacy standard.
Privacy advocates support AB 566, which requires Google and Microsoft to comply.
Critics warn of pushback and effectiveness concerns as AB 566 builds on California’s existing protections and could expand rights.