If your organization relies on Remote Desktop Protocol (RDP) for remote access, it's critical to secure it beyond the default settings. RDP is one of the most targeted attack surfaces — and misconfigurations are a top cause of breaches.
Why It Matters:
Remote work isn’t going away, and RDP is still widely used to access on-prem systems. But unless you’ve hardened your configuration, you may be opening your network to brute-force attacks, credential stuffing, or ransomware entry points.
Best Practices to Secure RDP:
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Don’t expose RDP directly to the internet. Use a VPN or SSH tunnel to gate access.
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Change the default port (3389) to a non-standard one to reduce automated scans.
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Enable Network Level Authentication (NLA) to require user credentials before a connection is established.
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Limit users who can access via RDP — avoid using admin accounts.
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Enable account lockout policies to prevent brute-force attempts.
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Audit RDP logs regularly using Event Viewer or SIEM tools to spot anomalies.
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Use MFA for RDP sessions whenever possible (e.g., Duo, Azure MFA).
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Patch, patch, patch — vulnerabilities like BlueKeep exploited unpatched RDP systems years after disclosure.
Why It’s Useful:
Even a single exposed RDP port can be scanned thousands of times a day by bots. A few tweaks can turn your RDP instance from a risk into a securely managed remote access solution.
Use Microsoft’s Attack Surface Analyzer or tools like Shodan.io to test your exposure — you might be surprised what’s visible from the outside.