Hello, everyone. Every month, the digital world continues to evolve at an impressive pace. From new vulnerabilities and incidents affecting major web infrastructure to news about our community, EITT brings you an overview of the events that marked November 2025. In this latest edition, we'll take a look back at two critical security vulnerabilities affecting Windows, a major outage at Cloudflare that disrupted part of the Internet, and some excellent news regarding the return of our founder's LinkedIn account.

⚠️ Top Story – Windows Targeted by Two Critical Vulnerabilities

In November, Microsoft alerted users to the active exploitation of two security vulnerabilities affecting several versions of Windows.

The first vulnerability allowed an attacker to execute malicious code simply by tricking a user into opening a specially crafted file. This vulnerability could be exploited without requiring elevated privileges, making it particularly dangerous.

The second vulnerability affected Windows Server Update Services (WSUS), which many companies use to manage the deployment of Windows updates. Unpatched servers could be targeted to disrupt their operation or facilitate other attacks on the network.

Microsoft quickly released security patches via Windows Update and strongly recommends that all users and IT administrators install the latest available updates.

This news serves as yet another reminder that keeping your systems up to date remains one of the most effective ways to protect against cyberattacks.

🌐 2nd NEWS STORY – A Cloudflare outage disrupts the global web

On November 18, 2025, a major outage at Cloudflare, one of the world's leading Internet service providers, caused disruptions to thousands of websites and applications.

For several hours, many services related to artificial intelligence, social media, e-commerce, cloud gaming, and various business tools became difficult to access.

Contrary to some rumors circulating on social media, this was not a cyberattack. The problem stemmed from an internal error during an update to Cloudflare's infrastructure.

Although the incident was resolved quickly, this outage demonstrates just how much of the Internet today relies on a few major players. When a provider of this magnitude encounters a technical problem, the consequences can be felt around the world.

🚀 3rd NEWS ITEM – Léo Geslin Returns to LinkedIn After an Identity Theft Incident

This third news item directly concerns EITT.

After several months of working with LinkedIn, Léo Geslin, founder of EITT, has officially regained access to his professional account.

As a reminder, the account had been compromised following an identity theft, preventing its use for nearly four months. This situation resulted in the loss of access to posts, professional interactions, and the network built up over the years.

Thanks to extensive verification efforts with the LinkedIn teams and the provision of the necessary supporting documentation, the account was finally recovered and fully secured.

This recovery marks a new milestone for EITT. Educational posts, analyses of IT news, cybersecurity advice, and announcements of future projects will gradually resume on LinkedIn.

This incident also serves as a reminder that no user is completely immune to identity theft attempts. Enabling two-factor authentication, using a unique password, and regularly reviewing security settings remain essential measures for protecting your online accounts.

📌 EITT Conclusion

November 2025 was marked by:

🔒 Two critical Windows vulnerabilities quickly patched by Microsoft.

🌐 A major outage at Cloudflare that disrupted part of the global web.

🚀 The return of the LinkedIn account of Léo Geslin, founder of EITT, after several months of downtime due to identity theft.

These events once again highlight the ongoing challenges of the digital world: keeping systems up to date, understanding how major Internet infrastructures work, and strengthening the security of one's digital identity.

👉 Find our analyses, advice, and all our news on the EITT website.