Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled. Someone you know, such as a family member, bought something with your card. You can now investigate this on the Manage your payments page. A previously declined charge was charged again. A pre-order or split order was shipped. Someone made an in-app purchase from an app, game, or ...

Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.

KB5005413: Mitigating NTLM Relay Attacks on Active Directory Certificate Services (AD CS)

Wondering what multifactor authentication, sometimes known as two step verification, is? This article will explain it clearly.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Training: With Microsoft Forms, you can create surveys, quizzes, and polls, and easily see results as they come in. When you create a quiz or form, you can invite others to respond to it using any web browser, even on mobile devices. As results are submitted, you can use built-in analytics to evaluate responses. Form data, such as quiz results, can be easily exported to Excel for additional ...

Learn how to download files from the web, change your default download location, and find files you've downloaded on your PC using Internet Explorer.

Learn how to download and install apps you need from your Microsoft 365 business subscription.