Threat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December 2025. The finding, detailed by EXPMON’s Haifei Li, has been described as a highly-sophisticated PDF exploit. The artifact (“Invoice540.pdf”) first appeared on the VirusTotal platform on November 28, 2025. A second
Beyond monitoring and compliance, visibility acts as a powerful deterrent, shaping user behavior, improving collaboration, and enabling more accurate, data-driven security decisions. The post The Hidden ROI of Visibility: Better Decisions, Better Behavior, Better Security appeared first on SecurityWeek.
ProPublica has a scoop: In late 2024, the federal government’s cybersecurity evaluators rendered a troubling verdict on one of Microsoft’s biggest cloud computing offerings. The tech giant’s “lack of proper detailed security documentation” left reviewers with a “lack of confidence in assessing the system’s overall security posture,” according to anRead More »On Microsoft’s Lousy Cloud Security
An apparent hack-for-hire campaign likely orchestrated by a threat actor with suspected ties to the Indian government targeted journalists, activists, and government officials across the Middle East and North Africa (MENA), according to findings from Access Now, Lookout, and SMEX. Two of the targets included prominent Egyptian journalists and government critics, Mostafa
Tracked as UNC6783, the threat actor is likely linked to Mr. Raccoon, the hacker behind the alleged theft of Adobe data from a BPO. The post Google Warns of New Campaign Targeting BPOs to Steal Corporate Data appeared first on SecurityWeek.
Reputable researcher Haifei Li has come across what appears to be a PDF designed to exploit an unpatched vulnerability. The post Adobe Reader Zero-Day Exploited for Months: Researcher appeared first on SecurityWeek.
In December 2025, hackers stole names and passport numbers from the European travel company’s network. The post 300,000 People Impacted by Eurail Data Breach appeared first on SecurityWeek.
A hacker transferred more than 50 bitcoin from the Bitcoin ATM operator’s wallets after stealing credentials. The post $3.6 Million Stolen in Bitcoin Depot Hack appeared first on SecurityWeek.
Hackers vowed to revive its efforts against America when the time was right — demonstrating how digital warfare has become ingrained in military conflict. The post Shaky Ceasefire Unlikely to Stop Cyberattacks From Iran-Linked Hackers for Long appeared first on SecurityWeek.
The first quarter of 2026 has reinforced a hard truth: U.S. government agencies and educational institutions are operating in the most hostile cyber threat environment ever recorded.
