YeoPan - Version 1.0 YeoPan is an easy to use file encryption and compression tool. It allows you to combine multiple files into single archives and protect them all using 4Yeo encryption, a powerful encryption algorithm developed by Sequreware. In addition to protecting your files you can compress the archive for faster transfer over the internet and less disk-space usage on your computer.YeoPan uses Pandora compression, another powerful algorithm developed by Sequreware.