How to recover a hacked or compromised Microsoft account
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.
Secure your account if you think you’ve been hacked
If you think your Microsoft account has been hacked, find out how to secure your account and check for unauthorized activity.
What happens if there's an unusual sign-in to your account
Learn what to do if your username and password have stopped working. If you sign in to your account while traveling or if you install a new app that signs in with your account, you may get an alert. We …
DoS and DDoS attacks on Xbox
Find answers to FAQs about denial of service (DoS) and distributed denial of service (DDoS) attacks when you're using the Xbox network on your Xbox console.
National Public Data breach: What you need to know
In early 2024, National Public Data, an online background check and fraud prevention service, experienced a significant data breach. This breach allegedly exposed up to 2.9 billion records with …
Microsoft security help and learning
Get started with Microsoft Defender identity theft monitoring. Criminals are constantly trying to trick you into revealing your personal information. Learn to spot scams. Attackers will send you fake emails …
Keep your computer secure at home - Microsoft Support
Keeping your computer secure helps you avoid malware and direct hacking attempts designed to steal your personal information. Here are some ways you can help reduce your online risk when you use …
How to help keep your Microsoft account secure
Learn how to keep your Microsoft account safe, including making a strong password, identifying safe emails, and reviewing account activity.
Protect my PC from viruses - Microsoft Support
Use an anti-malware app - Installing an anti-malware app and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Microsoft Defender is free anti-malware …
Sign in to your account with a security key - Microsoft Support
FIDO stands for Fast IDentity Online and the standards are set and managed by the FIDO Alliance. There are different types of security keys that you can use, like a USB key that you plug in to your …
Phishing and suspicious behavior in Outlook - Microsoft Support
Here are some ways to deal with phishing and spoofing scams in Outlook.com. Spoof intelligence in Exchange Online Protection helps prevent phishing messages from reaching your Outlook inbox. …