An organization’s email communications are the heart of its operations. As a result, when a threat actor gains access to an Exchange deployment, they can learn a lot about the organization, from top secret information to mundane trivia. To avoid such an attack, consider these best practices for Exchange security:

Ensure that only those who need server access have it. Exchange security reviews help to enforce the least privilege principle, while auditing and logging can help to provide transparency into what happens behind the scenes.

Crypto Exchange Security: How Platforms Protect Your Assets

Implement encryption protocols and anti-spam filters to protect data. Manage mailbox sizes, servers, and performance through automated backups to reduce risk. Use advanced features such as public folders, shared calendars, and address books to streamline collaboration. Set up room and equipment mailboxes to manage scheduling. Monitor mailbox sizes and other server health metrics regularly, and apply updates to prevent vulnerabilities from being exploited.

Make sure that all your Exchange servers are configured to use TLS 1.2, rather than the older SSL protocol. Doing so can improve security and enhance email delivery, because TLS 1.2 provides more secure connections between client applications and your servers. Also, remember to enable journaling to capture suspicious activity and provide visibility into potentially sensitive information. Finally, deploying anti-malware software on your Exchange servers and using the cloud-based Microsoft ATP feature to detect sophisticated threats can further fortify your Exchange environment.