In the news: check your Microsoft Office updates

Written by:
Leo Hoogma, 22 July 2026

Do you use Microsoft Word, Excel, PowerPoint, SharePoint or other Office applications? Then check whether your software is up to date. Several security vulnerabilities in Microsoft Office have been discovered that can be exploited by cybercriminals.

At Hoogma Webdesign, we believe it is important to keep you informed about this. By installing updates on time, you reduce the risk of data breaches, system issues and other digital threats.

What is happening?

The NCSC (National Cyber Security Centre) warns about vulnerabilities in Microsoft Office products such as Word, Excel, PowerPoint and SharePoint.

One important vulnerability is CVE-2026-58644 in SharePoint. This vulnerability is actively being exploited by attackers and could allow them to gain remote access to systems.

Other vulnerabilities may lead to:

• the execution of malicious software;
• the theft of sensitive data;
• unauthorised access to business networks.

How can you prevent problems?

Many attacks start with a simple action, such as opening an infected file or clicking on a malicious link. That is why it is important to remain vigilant and keep your software properly maintained.

• Install Microsoft updates as soon as possible.
• Do not open suspicious files or links.
• Use strong passwords and additional security measures where possible.
• Ask for help if you are unsure about the security of your systems.

Need help with digital security?

Are you unsure whether your Microsoft Office, computer or network is properly secured? Don’t wait.

A quick check can prevent many problems.

At Hoogma Webdesign, we can help with:

• secure email solutions;
• spam filters against phishing and unwanted messages;
• secure websites and online applications;
• advice on safe internet usage.

We are happy to look with you for a solution that fits your situation. Feel free to contact us if you have any questions.

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