Security News

Microsoft has acknowledged a new issue affecting Outlook for Microsoft 365 users and causing email-sending problems for those with too many nested folders. While Microsoft is currently investigating this newly acknowledged issue, it also provided affected customers with some tips to workaround the email sending problems.

A series of attacks against Microsoft Active Directory domains could allow miscreants to spoof DNS records, compromise Active Directory and steal all the secrets it stores, according to Akamai security researchers. While the current report doesn't provide technical details or proof-of-concept exploits, Akamai has promised, in the near future, to publish code that implements these attacks called DDSpoof - short for DHCP DNS Spoof.

The threat actor known as COLDRIVER has continued to engage in credential theft activities against entities that are of strategic interests to Russia while simultaneously improving its detection...

Microsoft will not abandon Windows 10 users to an insecure fate once it reaches end of support on October 14, 2025: both enterprises and individual consumers will be able receive Extended Security Updates, but will have to pay for them. "The ESU program enables PCs to continue to receive critical and important security updates through an annual subscription service after support ends. To be eligible to install updates from the ESU program, devices must be running Windows 10, version 22H2," Microsoft says.

Microsoft on Tuesday warned that full security support for Windows 10 will end on October 14, 2025, but offered a lifeline for customers unable or unwilling to upgrade two years hence. "While we strongly recommend moving to Windows 11, we understand there are circumstances that could prevent you from replacing Windows 10 devices before the EOS date," explained Jason Leznek, a member of Microsoft's Windows Servicing & Delivery team, in an statement.

Microsoft says that all Windows 10 customers will be able to pay for three extra years of security updates through the company's Extended Security Updates program after the end of support date. The upcoming Windows 10 22H2 version is the final Windows release, with all editions to continue to receive monthly security updates until the EOS date.

Microsoft has confirmed an issue causing the HP Smart app to automatically install on Windows systems after all printers are renamed to HP LaserJet M101-M106. Customers have been reporting this issue since last week on the Microsoft community website and on online social networks. According to these reports, the HP Smart App is automatically installed on some Windows 10 and Windows 11 devices via the Microsoft Store, even though users don't own or use an HP printer or an HP computer.

Microsoft Copilot has been called one of the most powerful productivity tools on the planet. Copilot is an AI assistant that lives inside each of your Microsoft 365 apps — Word, Excel, PowerPoint,...

Microsoft on Monday said it detected Kremlin-backed nation-state activity exploiting a critical security flaw in its Outlook email service to gain unauthorized access to victims' accounts within...

Microsoft has fixed a known issue causing Outlook Desktop clients to crash when sending emails from Outlook.com accounts. The known issue only impacts Outlook for Microsoft 365 users and those in the Current Channel channel using Outlook build 17029.