LOWVulnerability
Verified
United States

SEC Proposes Updated Cybersecurity Incident Reporting Rules for Public Companies

Saturday, March 7, 2026 at 03:00 PM UTC·Source: SEC

Updated: Sunday, March 8, 2026 at 10:00 AM UTC

Executive Summary

SEC proposes amendments requiring public companies to report material cyber incidents within 48 hours, down from 4 business days.

Analysis

The SEC has proposed amendments to its cybersecurity incident reporting rules that would shorten the material incident reporting deadline from four business days to 48 hours. The proposal also requires quarterly disclosure of cyber risk management metrics and board-level cyber expertise. The rule change comes after criticism that the current four-day window allows too much time for market manipulation. Public comment period runs through May 2026.
Source Attribution

Originally published by SEC on Mar 7, 2026. Verified by: SEC.

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