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Web3 Security9 min read2026-08-09

What is Row Level Security in Supabase, and why did its absence cause the Moltbook breach?

Row Level Security (RLS) is PostgreSQL's per-row access control that makes Supabase's public anon API key safe to ship in client-side JavaScript. When RLS was never enabled, that key behaved as a database admin credential — which is how Wiz obtained 1.5 million API tokens and 35,000 email addresses from Moltbook in February 2026.

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