Russian software company, ElcomSoft, has developed a tool capable of recovering iWork passwords from Apple Numbers, Pages, and Keynote applications. The tool works by performing a distributed, brute force dictionary attack against user-selectable passwords. It is just the latest effort by the Russian firm, which has previously released tools for breaking the encryption used to protect data on Apple iPhone and RIM Blackberry devices. Elcomsoft claims this tool gives forensics experts the ability to access a vast array of encrypted evidence.
Source: https://threatpost.com/new-tool-cracks-apple-iwork-passwords-020912/76195/