# Collection #4

> Canonical HTML: https://h1dr4.dev/bases/collection-4
> Machine index: https://h1dr4.dev/llms.txt

In January 2019, 5 collections appeared at the popular hacker forum, which are a combination of data from many other leaks. This is the fourth collection, one of the largest. It contained 40 thousand files with a total size of 178 GB. These files had 5.4 billion lines with posts and passwords, but only 1.9 billion turned out to be unique pairs.

## Indexed metadata

- Email: 4,263,736

## Index context

- Record ID: database_1164
- Numeric ID: 1164
- Indexed bases: 5259
- Raw contents hosted by H1DR4: no
- Intended use: sourced investigative context and historical exposure research
- Reference URL: https://h1dr4.dev/bases/collection-4