Infinite.zip -

It relies on recursive compression —layers upon layers of nested ZIP files. A single file might contain 100 zip files, each containing 100 more, and so on. 2. How it Works (The Mechanics)

A tiny compressed file (often only a few kilobytes or megabytes in size) that expands into a gargantuan amount of data (petabytes, exabytes, or "infinite" space) upon extraction. Infinite.zip

The ZIP algorithm can compress repetitive data (like a file filled entirely with zeros) extremely efficiently. A 10 GB file of zeros can be compressed into a few megabytes. It relies on recursive compression —layers upon layers

Systems should be configured to reject archives where the ratio of compressed-to-uncompressed size is suspiciously high. How it Works (The Mechanics) A tiny compressed

Do not extract unknown or unexpectedly small zip files from untrusted sources. zip and recursive zip bombs ? 42.zip (2004) - Hacker News