Preliminary research
20 Million Rows Exposed: A Supabase Security Study of YC Startups
AI-collected research leads through 2 October 2026, including bounded month-by-month reviews of selected social and community sources from January through September. Unranked, incomplete, not community-vetted, and subject to change.
Measures Supabase authorization exposure across 107 Y Combinator startups, with 71 deployments assessable through their public client configuration. Missing or weak Row Level Security exposed 20.1 million rows, including PII at 20 companies and authentication or session data at three.
Record
- Researcher
- Victor
- Published by
- ModernPentest
- Date
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This page is the archive's own catalogue record. The research is the work of Victor, first published at the original source. Preserved copies are kept so the citation survives its host.