Microsoft Security for business
Comprehensive cybersecurity for your business
Securely run your small business with AI‑powered, enterprise‑grade cybersecurity and productivity tools—backed by expert support for businesses up to 300 employees.
WHY MICROSOFT SECURITY
Run your business securely in the AI era
- Protect against phishing, ransomware, malware, and network intrusions while preventing data loss and oversharing with comprehensive security across email, apps, devices, and data.
- Secure your business as you innovate with AI. Help surface shadow AI, flag risky use, and keep sensitive data from leaking. Encrypt emails, discover, label, and classify sensitive data, and help prevent business information from being accidentally or maliciously shared or lost.
- Apply security policies to help protect work data on company-owned and employee devices. Reduce vulnerabilities by keeping devices up to date. Maintain company data within approved apps and remove business data from lost or stolen devices.
- Help employees securely access business apps wherever they work using Zero Trust controls such as multifactor authentication and conditional access.
- Keep teams connected and productive with AI-ready collaboration tools like Word, Excel, PowerPoint, Outlook, and Teams—with security built in so people can do more, securely.
- Set up protection fast with easy access to onboarding support. Connect with a security specialist or explore documentation, tutorials, and community resources to get started quickly.
FEATURED PRODUCTS
Comprehensive, AI-powered security for your growing business
Protect your people, data, devices, email, and apps with Microsoft security products that work together as one connected solution, so you get comprehensive protection without managing separate point tools.
Microsoft 365 Business Premium: productivity and security in one affordable solution
Save big by bringing productivity apps, identity, device, email, and data protection into one simplified, cost-effective solution.
Microsoft Defender Suite for Business Premium
Help prevent advanced cyberattacks with AI-powered enterprise-grade, threat protection across identities, endpoints, apps, and email.—and contain threats automatically before they spread.
Microsoft Purview Suite for Business Premium
Adopt AI with confidence. Discover, protect, and govern sensitive data across email, files, apps, and AI tools—catching risky use and helping prevent leaks without slowing your team down.
Microsoft Defender for Business
Safeguard devices from ransomware and other cyberthreats with enterprise-grade, AI-powered device security.
Microsoft Defender for Office 365
Help secure your email and collaboration tools with AI-powered protection against phishing attempts.
Microsoft Intune
Set rules to enable work access and help protect devices across Windows, macOS, Linux, iOS, and Android platforms—all from one place.
Microsoft Entra ID
Protect identities and manage access to work apps, data, and services through unified identity management.
Plans and pricing
Discover the right security plan for your small or medium-sized business
Run your business securely, boost productivity, and prepare for AI all in one platform. Add Defender and Purview Suites for advanced protection.
Microsoft Purview Suite for Microsoft 365 Business Premium
Discover, protect, and monitor sensitive information with comprehensive compliance capabilities.
$10.00
user/month, paid yearly
(Annual subscription–auto renews)1
Discover, protect, and monitor sensitive information with comprehensive compliance capabilities.
(Annual subscription–auto renews)1
This product is not available in your market.
- Requires Microsoft 365 Business Premium
- AI-powered data loss prevention to identify, classify, and automatically safeguard sensitive content across email, files, and apps
- Automated classification, retention labeling, and records management at scale with Data Lifecycle Management
- End-to-end encryption for messages and attachments—inside and outside your organization
- Simplified compliance posture with continuous control mapping and actionable insights
- Insider-risk detection and remediation
Microsoft Defender Suite for Microsoft 365 Business Premium
Protect data with XDR—layered threat protection, data security, compliance, identity management, and governance.
$10.00
user/month, paid yearly
(Annual subscription–auto renews)1
Protect data with XDR—layered threat protection, data security, compliance, identity management, and governance.
(Annual subscription–auto renews)1
This product is not available in your market.
- Requires Microsoft 365 Business Premium
- Comprehensive extended detection and response (XDR) capabilities across identities, endpoints, apps, and email to help protect against, detect, and respond to sophisticated attacks
- Identity protection with AI-driven risk detection and automated response
- AI-powered endpoint security with applied threat intelligence and threat hunting
- Enhanced AI-powered phishing protection and detailed reporting
- Software as a service (SaaS) security to track employee use, manage access, and restrict suspicious behavior in cloud apps
Microsoft Defender and Purview Suites for Microsoft 365 Business Premium
Combines Microsoft Defender and Microsoft Purview Suites for maximum security and compliance.
$15.00
user/month, paid yearly
(Annual subscription–auto renews)1
Combines Microsoft Defender and Microsoft Purview Suites for maximum security and compliance.
(Annual subscription–auto renews)1
This product is not available in your market.
- Requires Microsoft 365 Business Premium
- AI-powered data loss prevention to identify, classify, and automatically safeguard sensitive content across email, files, and apps
- Automated classification, retention labeling, and records management at scale with Data Lifecycle Management
- End-to-end encryption for messages and attachments—inside and outside your organization
- Simplified compliance posture with continuous control mapping and actionable insights
- Insider-risk detection and remediation
- Comprehensive XDR capabilities across identities, endpoints, apps, and email to help protect against, detect, and respond to sophisticated attacks
- Identity protection with AI-powered risk detection and automated response
- AI-powered endpoint security with applied threat intelligence and threat hunting
- Enhanced AI-powered phishing protection and detailed reporting
- SaaS security to track employee use, manage access, and restrict suspicious behavior in cloud apps
Customer stories
Explore how Microsoft helps businesses stay secure
What’s new
Get the latest from Microsoft Security
Highlighting the importance of better securing your business during National Small Business Week
Discover innovative solutions, customer stories, and resources from Microsoft to help you better secure your business.
Elevating security for SMBs with AI-powered email protection and new partner initiatives
Explore AI-powered email and collaboration protection features from Microsoft Defender for Office 365—also included in Microsoft 365 Business Premium.
7 cybersecurity trends and tips to help small and medium-sized businesses stay protected
Stay up to date on the top security challenges faced by small and medium-sized businesses—and find ways to approach the evolving cyberthreat landscape.
Frequently asked security questions for small and medium-sized businesses
- Attackers increasingly target small and medium-sized businesses as easier entry points, and AI is making phishing, ransomware, and business email compromise faster and more convincing. One breach can mean lost data, downtime, and lost customer trust. Microsoft 365 Business Premium builds AI-ready protection for identities, devices, email, and data into the tools your team already uses—so you can run your business securely, even without a dedicated security team. As your needs grow, the Defender and Purview Suites for Business Premium add advanced threat protection and data governance.
- Small businesses can improve their security posture by starting with the controls that stop the most common attacks: multifactor authentication, verified access, managed and up-to-date devices, email protection, data protection, and a response plan. Microsoft 365 Business Premium brings these together in one subscription—Microsoft Entra ID for identity and MFA, Microsoft Intune for devices, Microsoft Defender for Business for endpoints, Microsoft Defender for Office 365 for email, and Microsoft Purview for data—so you're not stitching together separate point tools. When you need more, the Defender and Purview Suites add advanced detection, response, and governance.
- There are six essential security solutions that small businesses should consider: identity and access management, email and collaboration security, device protection, device management, data protection, and response planning. Microsoft 365 Business Premium delivers all six in one integrated plan for businesses up to 300 employees. For advanced threat protection and compliance capabilities, small businesses can add Defender Suite for Business Premium and Purview Suite for Business Premium.
- Cybersecurity costs vary based on business size, risk, and the level of protection you need. Microsoft 365 Business Premium is a strong starting point because it combines productivity apps with identity, device, email, and data protection in one subscription for businesses up to 300 employees. For businesses with more advanced needs, Microsoft Defender and Purview Suites for Business Premium add deeper threat protection, response, data governance, and compliance capabilities. See Plans and Pricing to compare options.
- Best practices for protecting business data includes: Knowing where sensitive data lives, controlling who can access it, and protecting it wherever it goes—classify and label data, encrypt email and files, apply data loss prevention, require multifactor authentication, and keep an audit trail. Microsoft Purview, included in Microsoft 365 Business Premium and expanded in the Purview Suite for Business Premium, helps you discover, label, protect, and govern data across email, files, apps, and AI tools.
- Business Standard gives your team Microsoft 365 apps, business email, and collaboration tools with standard security built in. Business Premium adds the security layer a growing business needs: device protection beyond basic antivirus, identity protection with multifactor authentication and conditional access, device management, and data protection to help keep sensitive information from leaking into AI tools. It’s the difference between productivity tools and a secure foundation for work, growth, and AI readiness. For more advanced needs, Defender and Purview Suites for Business Premium extend that foundation with deeper threat protection, response, data governance, and compliance capabilities.
- Zero Trust assumes no user or device is safe by default—every sign-in, device, and access request is verified rather than trusted because it is inside the network. Microsoft 365 Business Premium supports Zero Trust with Microsoft Entra ID Plan 1 for identity and multifactor authentication, Microsoft Intune Plan 1 for device management, Microsoft Defender for Business for endpoint protection, and Microsoft Purview for data protection. Multifactor authentication blocks over 99% of unauthorized access attempts6.
- AI boosts productivity, but employees using unapproved tools can expose sensitive data without realizing it. Microsoft 365 Business Premium includes Microsoft Purview and Microsoft Defender, so you can adopt AI with confidence—Purview helps discover which AI apps are in use, flag or block risky activity, and keep sensitive data out of the wrong tool, while Defender helps protects the accounts and devices behind them. As you roll out Microsoft 365 Copilot and other AI tools more broadly, the Purview Suite for Business Premium extends this visibility and control.
- Microsoft Security is the broader portfolio of products that help protect identities, devices, email, apps, and data. Microsoft 365 Business Premium is the all-in-one plan for small and medium-sized businesses that includes Microsoft 365 apps plus core security and device management, including Microsoft Defender for Business, Microsoft Defender for Office 365 Plan 1, Microsoft Entra ID Plan 1, Microsoft Intune Plan 1, and Microsoft Purview capabilities. For more advanced needs, Microsoft Defender Suite for Business Premium adds deeper threat protection, and Microsoft Purview Suite for Business Premium adds expanded data security, governance, and compliance.
Get started
Choose your plan
Review available cybersecurity and productivity solutions, or connect with a sales representative to get personalized advice.
- [1]Once your paid subscription begins, you have a 7-day cancellation window to receive a prorated refund, only paying for what you use. You may cancel your subscription at any time in the Microsoft 365 admin center. Learn how to cancel your Microsoft 365 subscription. When a subscription is canceled, all associated data will be deleted. Learn more about data retention, deletion, and destruction in Microsoft 365.
- [2]After your one-month free trial ends, your subscription will automatically convert to a paid subscription and you’ll be charged the applicable subscription fee based on the subscription term and billing plan you select. Cancel anytime during your free trial to stop future charges. A credit card is required to sign up. Storage for trials will be limited. Microsoft reserves the right to suspend access to its products and services if payment is not received after your one-month free trial ends. Learn more.
- [3]This discount offer is available to Microsoft 365 Copilot or Microsoft 365 Copilot Business commercial customers between December 1, 2025 and December 31, 2026. Customers can purchase Microsoft Purview Suite for Business Premium This discount offer is available to Microsoft 365 Copilot or Microsoft 365 Copilot Business commercial customers between December 1, 2025 and July 1, 2026. Customers can purchase Microsoft Purview Suite for Business Premium at a discounted rate. An annual commitment is required, and promotional pricing applies to the first year only. Promotional pricing will be reflected at checkout. This subscription automatically renews and is subject to recurring annual billing with a payment method required. This promotion is not available on trial subscriptions. Customers can cancel at any time to stop future charges, subject to any applicable cancellation fees. This offer may not be combined with any other offer. Microsoft reserves the right to cancel, change, or suspend this offer at any time without notice in its sole discretion. Offer requires prerequisites. May not be combined with any other offers.
- [4]IDC MarketScape: Worldwide Modern Endpoint Security for Midsize Businesses Vendor Assessment, 2024, Michael Suby, February 2024.
- [5]IDC MarketScape: Worldwide Modern Endpoint Security for Enterprises Vendor Assessment, 2024, Michael Suby, January 2024.
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