Nvidia Denies Presence of Backdoors, Kill Switches, or Spyware in Its Chips

Nvidia has issued a comprehensive denial regarding allegations that its graphics processing units contain backdoors, kill switches, or spyware, emphasizing that such features would fundamentally undermine global digital infrastructure and cybersecurity principles. The chipmaker’s statement comes amid growing discussions among…

Photos: Black Hat USA 2025

Here’s a look inside Black Hat USA 2025. The featured vendors are: Stellar Cyber, Vonahi Security, Gurucul, Check Point, HackerOne, EasyDMARC, Elastic, Google, Tines, Veracode, VioletX, Pentera, Keep Aware, Oleria, SpyCloud, Trend Micro and Picus Security. The post Photos: Black…

New Microsoft Exchange Server Vulnerability Allows Unauthorized Admin Privilege Escalation

Microsoft has disclosed a high-severity security vulnerability affecting Exchange Server hybrid deployments that could allow attackers with administrative access to escalate privileges and potentially compromise an organization’s entire cloud and on-premises infrastructure. The vulnerability, tracked as CVE-2025-53786, was announced on…