Exploit.In

The Exploit.In data breach surfaced in late 2016 as a massive aggregation of credentials sourced from various previous leaks. This collection became one of the largest credential stuffing resources of its time containing hundreds of millions of unique email addresses and plain text or hashed passwords. The dataset was primarily circulated within darknet forums and used by cybercriminals for large scale account takeover attacks across multiple platforms. It represents a significant milestone in the history of credential dumping due to its sheer volume and the consolidation of multiple smaller breaches into a single searchable format.