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 …
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 is an "unknown" breach? - Microsoft Support
Just because the source of the breach isn't known doesn't mean that the information isn't important or that you shouldn't take steps to protect yourself. For example, if you recognize a breached password, …
Why does my info appear in a breach of a site I never used?
It's fairly common for people to get breach notifications for unfamiliar sites. Let's take a look at a few of the ways this can happen. In many cases the breach happened years ago, and you may have …
What to do if your Social Security Number (SSN) is exposed
If your Social Security number is exposed in a breach or leak, it's important that you act quickly to prevent identity thieves from doing more damage. We'll give you some steps to take.
What to do if your email address is leaked - Microsoft Support
Use Microsoft Defender's identity theft monitoring service to find out if companies have exposed your email address in a breach and to get access to restoration services to help address the situation.
What to do if your credit or debit card info is stolen
Important: The National Public Data breach exposed personal information, including names, addresses, and social security numbers. Learn how to protect yourself and how Microsoft Defender is helping to …
Dark web monitoring in Microsoft Defender FAQ
When we spot your personal details in a breach, you’ll receive an alert and a detailed breach report telling you exactly what data was found and where, together with suggested next steps to either …
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.
Getting started with identity theft monitoring in Microsoft Defender
The service will notify you if it discovers a breach that contains any of the pieces of information you have asked it to monitor. Additionally, it may discover other related personal information, such as your …
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 …