Sometimes when opening a PDF file, it will give off a security warning. The warning is displayed for PDF files that are transferred or run programs and macros that can be harmful to your computer.

Attackers using the Snake keylogger malware for Windows are emailing malicious PDFs with embedded Word documents to infect victims' PCs and steal information. Malicious PDFs are an unusual tool to use ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thorin Klosowski There’s no one-size-fits-all solution to computer security, ...

A new cybersecurity threat is targeting iPhone and Android users through dangerous PDF files designed to steal sensitive information. Researchers at Zimperium’s zLabs have uncovered a large-scale ...