US Nuclear Weapons Data Compromised via SharePoint Zero-Day Attack

A significant cybersecurity breach has exposed vulnerabilities in critical US government infrastructure, as the National Nuclear Security Administration (NNSA) was reportedly compromised through a Microsoft SharePoint zero-day exploit linked to Chinese government-affiliated hacking groups.

Chinese Hackers Target Critical Infrastructure

The breach came to light hours after Microsoft disclosed that Chinese government-affiliated hacking groups had been exploiting a previously unknown vulnerability in its SharePoint software.

According to Bloomberg News, the NNSA, which plays a crucial role in providing the Navy with nuclear reactors for submarines, was among the victims of this sophisticated cyber attack.

The zero-day vulnerability has impacted more than 50 organizations in recent days, demonstrating the widespread nature of this security threat.

The exploit specifically targets on-premises versions of SharePoint, while leaving the SharePoint Online service that Microsoft operates as part of its Microsoft 365 cloud service unaffected.

Despite the concerning nature of the breach, officials maintain that no ...