#zero_day

Threat actors are piling on the zero-day vulnerabilities in SharePoint, including at least three Chinese nation-state cyber-espionage groups.

Microsoft reveals Chinese state-backed hacker groups, including Linen Typhoon, Violet Typhoon, and Storm-2603, are exploiting SharePoint flaws, breaching over 100 organisations. Discover threat actors, their tactics and Microsoft's urgent security guidance.

Hackers are exploiting critical SharePoint flaws (CVE-2025-53770/53771) to breach global targets, including governments and corporations. Microsoft urges immediate action. Learn about the active attacks and how to protect your network from credential theft and backdoors.

The recently disclosed critical Microsoft SharePoint vulnerability has been under exploitation as early as July 7, 2025, according to findings from Check Point Research. The cybersecurity company said it observed first exploitation attempts targeting an unnamed major Western government, with the activity intensifying on July 18 and 19, spanning government, telecommunications, and software

On Sunday, July 20, Microsoft Corp. issued an emergency security update for a vulnerability in SharePoint Server that is actively being exploited to compromise vulnerable organizations. The patch comes amid reports that malicious hackers have used the Sharepoint flaw to breach U.S. federal and state agencies, universities, and energy companies.

Malicious actors already have already pounced on the zero-day vulnerability, tracked as CVE-2025-53770, to compromise US government agencies and other businesses in ongoing and widespread attacks.

Even in well-secured environments, attackers are getting in—not with flashy exploits, but by quietly taking advantage of weak settings, outdated encryption, and trusted tools left unprotected. These attacks don’t depend on zero-days. They work by staying unnoticed—slipping through the cracks in what we monitor and what we assume is safe. What once looked suspicious now blends in, thanks to

A list of topics we covered in the week of July 14 to July 20 of 2025

A critical security vulnerability in Microsoft SharePoint Server has been weaponized as part of an "active, large-scale" exploitation campaign. The zero-day flaw, tracked as CVE-2025-53770 (CVSS score: 9.8), has been described as a variant of CVE-2025-49706 (CVSS score: 6.3), a spoofing bug in Microsoft SharePoint Server that was addressed by the tech giant as part of its July 2025 Patch Tuesday

Plus: Secret IRS data-sharing with ICE, a 20-year-old hackable vulnerability in train brakes, and more.