Incident Score: Analysis & Impact (MIC1776342690)

In this Rankiteo incident briefing, we review the Microsoft Security Response Center breach identified under incident ID MIC1776342690.

The analysis begins with a detailed overview of Microsoft Security Response Center's information like the linkedin page: https://www.linkedin.com/company/microsoft-security-response-center, the number of followers: 54723, the industry type: Computer and Network Security and the number of employees: None employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 555 and after the incident was 531 with a difference of -24 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Microsoft Security Response Center and their customers.

On 15 April 2026, Microsoft disclosed Information Disclosure issues under the banner "Microsoft Snipping Tool Vulnerability Exposes NTLM Hashes via Deep Link Abuse".

A newly disclosed vulnerability in Microsoft’s Snipping Tool, tracked as CVE-2026-33829, allows attackers to capture NTLM authentication hashes through network spoofing.

The disruption is felt across the environment, affecting Windows systems with Microsoft Snipping Tool, and exposing NTLM authentication hashes.

In response, moved swiftly to contain the threat with measures like Security update released, and began remediation that includes Patch issued in April 14, 2026 security update.

The case underscores how Resolved, teams are taking away lessons such as Improper validation in deep link protocols can lead to credential leakage. User awareness of social engineering risks is critical, and recommending next steps like Apply Microsoft’s April 2026 security update immediately. Educate users on recognizing malicious links. Monitor for unusual SMB traffic.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.