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Getting started with Microsoft Defender

Adding devices to your account

Protect the whole family with Microsoft Defender

Anti-malware

Getting started with anti-malware

How malware can infect your device

How to start a scan for malware in Microsoft Defender

What if Microsoft Defender finds malware on my device?

Security tip

A cartoon of a cybercrook peering over the top of a laptop.

Stay safer by slowing down

Scammers are often pushy, so beware of any messages urging you to "Act now!"

Identity theft monitoring

Getting started with identity theft monitoring in Microsoft Defender

Protecting yourself from identity theft online

The dangers of oversharing

Credit monitoring in Microsoft Defender FAQ

Dark web monitoring in Microsoft Defender FAQ

Credit scores in Microsoft Defender 

Identity theft monitoring help center

Protect your accounts

The keys to the kingdom - securing your devices and accounts

Create and use strong passwords

Visit the Microsoft Defender community

The Microsoft Defender community on Microsoft Answers

Learn more

Microsoft security help and learning

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Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

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