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leak.fun docs
Everything you need to search the index, read results and get the most out of leak.fun. Pick a guide below, or start from the top.
New here? leak.fun is a searchable index of publicly disclosed data breaches. You give it an identifier — an email, a username, a name — and it tells you, in well under a second, whether that identifier appears in any of the indexed leaks, and what was exposed alongside it.
The fastest path is Getting Started. Once you're comfortable, Search Operators shows you how to turn a rough query into a precise one.