PDF documents

Pierluigi Paganini May 30, 2021
These 2 attacks allow to alter certified PDF Documents

Researchers disclosed two new attack techniques that allow modifying visible content on certified PDF documents without invalidating the digital signature. Researchers from Ruhr-University Bochum have disclosed two new attack techniques, dubbed Evil Annotation and Sneaky Signature attacks, on certified PDF documents that could potentially allow attackers to modify visible content without invalidating their digital signature. The […]