The accessibility tree decides whether an AI agent can read and act on your page. The 2026 data says the web is getting ...

Hello! I'm Masaaki Ito, and I share information on IT education and business practices. You likely have many opportunities to handle PDF files in your daily work and studies. However, have you ever ...

Adobe patches a critical PDF flaw exploited for months, allowing attackers to bypass sandbox protections and deliver malware. Users urged to update now. Adobe rushed an emergency patch for a critical ...

Adobe has released a fix for an Acrobat and Reader zero-day that attackers had been exploiting for months. The patch, shipped on April 11, addresses CVE-2026-34621, a critical vulnerability in Acrobat ...

Monday is back, and the weekend’s backlog of chaos is officially hitting the fan. We are tracking a critical zero-day that has been quietly living in your PDFs for months, plus some aggressive ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. This voice experience is generated by AI. Learn more. This ...

Hackers have been quietly exploiting what appears to be a zero-day in Adobe Acrobat Reader for months, using booby-trapped PDFs to profile targets and decide who's worth fully compromising. Security ...

A critical Adobe Acrobat zero-day has been exploited for months via malicious PDFs to steal data and potentially take over systems, with no patch yet available. Attackers have been exploiting a ...

Adobe Reader vulnerabilities have been exploited for decades by threat actors taking advantage of the universal use of the utility to fool employees into downloading infected PDF documents through ...

Threat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December 2025. Given the name of the PDF document, ...

A cybersecurity researcher is warning of a zero-day vulnerability in Adobe Reader that allows attackers to steal local files and potentially take full control of a victim’s system – simply by getting ...

And existing major services (iLovePDF, Smallpdf, Adobe Acrobat Online, etc.) all adopt a model of 'uploading to a server for processing.' In other words, if I bring in the design philosophy of ...