State summary
California data breach filings 2026
Monthly totals, the most active defendants and the categories of data exposed in 40 recorded California data breach filings over the last twelve months. When a complaint from California proceeds as a class action, our class action coverage carries the full case page and residents can review class action notices for that matter.
Filings by month
California filings by month
Filings by defendant
Top companies in California
Data types exposed
What data was exposed
Latest records
Recent California filings
How this page is built. California rows are aggregated from the collector feed by filing month and defendant. Statistics are aggregated from the automated collector feed of public complaints, suit notices and settlement records. Each row links to the underlying case detail page in the class action archive or the matching class action notice page.