PDFex can bypass encryption and password protection in most PDF readers and online validation services Researchers in Germany have invented a new hack that can allow someone to break the ...

If you want to password-protect your PDF documents from outside interference, then maybe you should give PDF Page Lock a test run. It is a free encryption software that lets you easily encrypt PDF ...

PDF encryption uses the Cipher Block Chaining (CBC) encryption mode with no integrity checks, which implies ciphertext malleability. This allows us to create self-exfiltrating ciphertext parts ...

Researchers have developed a new technique that allows attackers to extract contents of a password-protected or encrypted PDF file under special conditions. In a paper — titled “Practical ...