Microsoft hides file extensions in Windows by default even though it's a security risk that is commonly abused by phishing emails and malware distributors to trick people into opening malicious files.

Microsoft plans to expand the list of file extensions that are banned in Outlook for the web (previously known as Outlook Web Access (OWA)). The list, which previously included 104 file extensions, ...

In total, Microsoft has now blocked 142 file extensions that it deems as at risk or that are typically sent as malicious attachments in emails. Microsoft is banning almost 40 new types of file ...

Add Yahoo as a preferred source to see more of our stories on Google. This guide explains how to change the file extension in Windows 11. It also clarifies the distinction between file extensions and ...

File Explorer in Windows 11 has some problems, but many of them can be easily fixed with just a few tweaks.

The seemingly innocuous Microsoft OneNote file has become a popular file format used by hackers to spread malware and breach corporate networks. Here's how to block malicious OneNote phishing ...