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Microsoft Security

Explore the latest in AI-powered cybersecurity capabilities announced at Microsoft Secure.  Watch on demand >  Read the announcement >

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Microsoft Security for business  

Comprehensive cybersecurity for your business

Run your business securely with AI-powered, enterprise-grade cybersecurity and productivity tools designed for businesses with 1-300 employees.
Why Microsoft Security

Run your business securely with Microsoft 365 Business Premium  

  • Help secure your email and collaboration tools with antiphishing intelligence and safeguard your devices from ransomware with endpoint protection across Windows, macOS, Android, and iOS.
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  • Encrypt emails, discover, label and classify sensitive data, and help prevent business information from being accidentally or maliciously shared or lost.
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  • Apply security policies to help protect work data on company-owned and employee devices. Keep company data within approved apps and remove business data from lost or stolen devices.
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  • Help employees securely access business apps wherever they work. Safeguard against password loss or theft with advanced multifactor authentication. 
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  • Make remote work productive and secure with collaboration tools such as Microsoft Teams and Office, included in Microsoft 365 Business Premium.  
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What’s new

Get the latest from Microsoft Security 

IDC ranked Microsoft number one for market share in corporate endpoint security

Learn why more businesses are entrusting their corporate endpoint security to Microsoft than any other vendor. 
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Microsoft Security blog

Get the latest information about threats that are impacting businesses—and strategies to defend against them.

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Defender for Business blog

Get news and updates on Defender for Business innovations.

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Trends and tips

Ten easy ways to help secure your data and protect your devices.


Small businesses deserve big security

Protect your business with enterprise-grade cybersecurity solutions designed for small and medium-sized organizations.

See how Microsoft 365 Business Premium provides end-to-end security.

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Customer stories

Explore how Microsoft helps businesses stay secure

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Choose your plan

Simplify your business with one comprehensive solution for cybersecurity and productivity when you try Microsoft 365 Business Premium.

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