Nickel.zip [RECOMMENDED]

The file is structured like a "nesting doll." Inside the main ZIP file are 16 smaller ZIP files. Inside each of those are 16 more, and so on.

: If a file has 5 layers of recursion, and each layer contains 16 files, the final count of files to be processed is nickel.zip

: Scanners are now programmed to stop looking after a certain number of layers (e.g., 5 or 10 deep). The file is structured like a "nesting doll

Most modern operating systems and security software have evolved to neutralize threats like "nickel.zip": and each layer contains 16 files