See Protect yourself against phishing and other attacks. Train everyone to know what to watch for spam or junk mail, phishing attempts, spoofing, and malware in their email. Email systems are especially vulnerable, because email is handled by everyone in the organization, and safety relies on humans making consistently good decisions with those communications. Set up managed devices (requires Microsoft 365 Business Premium or Microsoft Defender for Business)Įmail can contain malicious attacks cloaked as harmless communications. Protect unmanaged Windows and Mac computers

See Protect against malware and other cyberthreats.Įvery device is a possible attack avenue into your network and must be configured properly, even those devices that are personally owned but used for work. Your subscription includes preset security policies that use recommended settings for anti-spam, anti-malware, and anti-phishing protection. We also recommend adhering to the information security principle of least privilege, which means that users and applications should be granted access only to the data and operations they require to perform their jobs. You'll need to set up and manage the right number of admin and user accounts for your business. Using MFA can prevent hackers from taking over if they know your password.Īdministrator accounts (also called admins) have elevated privileges, making these accounts more susceptible to cyberattacks. Multi-factor authentication (MFA), also known as two-step verification, requires people to use a code or authentication app on their phone to sign into Microsoft 365, and is a critical first step to protecting your business data. This article also includes a section where you can compare capabilities across Microsoft 365 for business plans. This article describes how to secure your data with Microsoft 365 for business. Microsoft 365 Business Premium includes even more capabilities, such as device security, advanced threat protection, and information protection. Microsoft 365 for business plans include security capabilities, such as antiphishing, antispam, and antimalware protection. If you're an enterprise organization, see Deploy ransomware protection for your Microsoft 365 tenant. This article is designed for small and medium-sized businesses with up to 300 users.

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