Incident Score: Analysis & Impact (AIV1765250761)

In this Rankiteo incident briefing, we review the AIVENTU | Microsoft Partner breach identified under incident ID AIV1765250761.

The analysis begins with a detailed overview of AIVENTU | Microsoft Partner's information like the linkedin page: https://www.linkedin.com/company/aiventu, the number of followers: 12026, the industry type: Information Technology & Services and the number of employees: 31 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 753 and after the incident was 748 with a difference of -5 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 AIVENTU | Microsoft Partner and their customers.

On 11 June 2025, Microsoft disclosed Data Breach Vulnerability issues under the banner "EchoLeak: Zero-Click Vulnerability in Microsoft Copilot AI Tool".

A recently fixed critical vulnerability in Microsoft’s Copilot AI tool could have let a remote attacker steal sensitive data from an organization simply by sending an email.

The disruption is felt across the environment, affecting Microsoft 365 Copilot, and exposing Chat histories, OneDrive documents, SharePoint content, Teams conversations, preloaded organizational data.

In response, moved swiftly to contain the threat with measures like Microsoft released patches and mitigations, and began remediation that includes Microsoft updated products to mitigate the issue and implemented defense-in-depth measures, and stakeholders are being briefed through Microsoft issued an advisory stating no further action was necessary by customers.

The case underscores how Resolved, teams are taking away lessons such as AI agents like Microsoft Copilot can be exploited via zero-click attacks, highlighting the need for robust security measures in AI integrations. Default configurations may leave organizations vulnerable, and recommending next steps like Organizations should review AI tool configurations, implement defense-in-depth security measures, and monitor for unusual AI agent behavior. Vendors should proactively test for LLM scope violations and similar vulnerabilities, with advisories going out to stakeholders covering Microsoft advised customers that no further action was necessary after the patch was applied.

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.