How to Secure Remote Desktop Access: RDP, VPNs, and Remote Work Security in 2026

Why Remote Desktop Security Is a Critical Priority

Remote Desktop Protocol (RDP) and similar remote access tools allow you or your IT team to control a computer from anywhere in the world. This capability is enormously useful — but it's also one of the most aggressively attacked entry points in cybersecurity. Honeypot research consistently shows that exposed RDP servers on the public internet receive brute-force login attempts within minutes of going online, 24 hours a day, from automated botnets scanning billions of IP addresses.

Ransomware gangs specifically seek out exposed RDP as their preferred initial access vector. Once inside via RDP, attackers have interactive control of a Windows machine and can deploy ransomware, steal data, and move laterally through a network with far fewer barriers than any other attack method. Securing your remote access isn't an advanced hardening step — it's a baseline requirement for anyone working remotely or administering systems.

This guide covers Windows RDP specifically, plus third-party tools like TeamViewer, AnyDesk, and Tailscale, and the network-level controls that protect any remote access method. For the password strategy that underpins everything here, use our free password generator and store credentials in a dedicated password manager.

Step 1: Never Expose RDP Directly to the Internet

The single most impactful step you can take is to ensure port 3389 (the default RDP port) is never exposed to the public internet. If your Windows machine has RDP enabled and port 3389 is open in your firewall or router's port forwarding rules, you are being attacked right now. This is not hypothetical.

There are two legitimate ways to use RDP securely:

VPN + RDP: Place RDP behind a VPN. Users connect to the VPN first, which establishes an encrypted tunnel to your private network. Only after authenticating to the VPN can they access the RDP server, which is completely invisible to the public internet. This is the enterprise standard and the right approach for small businesses. NordVPN's Meshnet feature lets you create a private encrypted network between your devices — one way to establish secure remote access without exposing anything publicly.

Remote Desktop Gateway: Microsoft's Remote Desktop Gateway (RD Gateway) creates a secure HTTPS tunnel for RDP traffic, authenticates users before they reach the RDP server, and can enforce 2FA. This requires Windows Server or a compatible setup but is the proper solution for organizations that need always-on remote access without a traditional VPN.

If you absolutely must expose RDP, change the default port from 3389 to a random high port number (e.g., 49271). This won't stop a targeted attacker but dramatically reduces automated scanning exposure. Combine this with IP allowlisting — restrict RDP access to specific IP addresses or ranges only — through your firewall or router rules. Our guide on securing your home network covers firewall configuration in detail.

Step 2: Enforce Strong Credentials for RDP Accounts

Brute-force attacks against RDP typically run through dictionaries of common passwords and every common username variant (admin, administrator, user, your company name). If your RDP account uses a weak password or a common username, it will eventually be compromised.

Every account that can log in via RDP must have a strong, unique, randomly generated password — minimum 20 characters with full character set complexity. Use our free password generator and store it in NordPass or 1Password. Never use the same password for RDP that you use for any other service.

Rename the built-in Administrator account. In Windows, right-click Computer > Manage > Local Users and Groups > Users > right-click Administrator > Rename. Name it something non-obvious. Attackers universally try "Administrator" as the username — if that account name doesn't exist, automated attacks move on.

Create a dedicated, non-obvious username for remote access. Avoid your full name, email prefix, or company name. A random-looking username (even something like "sysops2026x") combined with a strong password eliminates the entire category of automated credential-stuffing attacks.

Step 3: Enable Network Level Authentication and Account Lockout

Network Level Authentication (NLA) requires users to authenticate before an RDP session is fully established. Without NLA, attackers can reach the Windows login screen and attempt to exploit vulnerabilities in the RDP protocol itself before they've proven any identity. With NLA, authentication happens at the network level first — reducing attack surface and making brute-force attacks harder.

To enable NLA in Windows: Right-click This PC > Properties > Remote settings > check "Allow connections only from computers running Remote Desktop with Network Level Authentication." This should be enabled on every RDP-accessible system without exception.

Configure account lockout policies to stop brute-force attacks: Local Security Policy (or Group Policy for domains) > Account Policies > Account Lockout Policy. Set account lockout threshold to 5 invalid attempts, lockout duration to 30 minutes, and reset counter after 30 minutes. This limits automated attacks to 5 guesses per 30-minute window — making any brute-force attempt impractical.

Enable Windows Firewall's built-in RDP rules to restrict which IP addresses can reach port 3389, even within your internal network. Defense in depth means multiple layers — even if an attacker reaches your local network, they should still face access controls.

Step 4: Use Multi-Factor Authentication for Remote Access

Passwords alone — even strong ones — are insufficient for remote access accounts. Combining a strong password with multi-factor authentication creates a layered defense that is far harder to bypass. See our guide on setting up two-factor authentication for the complete context.

For Windows RDP, MFA isn't built in by default but can be added through third-party solutions. Microsoft Entra ID (formerly Azure AD) supports MFA for Remote Desktop through the Remote Desktop Gateway integration. Open-source options like Duo Security's Windows Logon plugin add push notification approval to local Windows logins, including RDP sessions.

For smaller setups, the VPN-first approach solves MFA naturally: require MFA at the VPN layer before users can reach the RDP server at all. If someone's RDP password is compromised, attackers still can't reach the server without also passing your VPN's MFA challenge.

For third-party tools like TeamViewer and AnyDesk, both support 2FA natively. TeamViewer: Settings > Security > Two-factor authentication. AnyDesk: Profile > Security > Two-factor authentication. Enable it on every account. These tools are frequently targeted precisely because many users don't realize 2FA is available.

Step 5: Keep Systems Patched and Monitor for Threats

Remote access vulnerabilities — flaws in the RDP protocol itself — are regularly discovered and patched. The BlueKeep vulnerability (2019), DejaBlue (2019), and PrintNightmare (2021) all involved remote code execution vulnerabilities that could allow attackers to compromise systems without valid credentials. Systems that weren't patched were compromised at scale.

Enable automatic Windows updates and ensure they're actually installing. Go to Settings > Windows Update > Advanced options and confirm "Receive updates for other Microsoft products" is enabled. Many RDP-adjacent vulnerabilities are in other Windows components. Set a monthly calendar reminder to check that updates are current, especially on servers that may not have automatic restarts enabled.

Enable Windows Event Logging for RDP connections. The Security event log records every successful and failed login attempt. Review Event IDs 4624 (successful logon) and 4625 (failed logon) regularly, filtering for Logon Type 10 (RemoteInteractive). A sudden spike in failed logons from an external IP indicates an active brute-force attempt — block that IP at your firewall immediately.

Consider a reputable security suite for your remote work endpoint. Avast Business provides real-time threat detection that catches malware attempts even when they reach the system through a legitimate remote session — a layer of defense that remains relevant even when all other protections are in place.

Securing Third-Party Remote Access Tools

TeamViewer, AnyDesk, LogMeIn, and similar tools are convenient but carry their own risks. These tools establish outbound connections to the vendor's relay servers, which means they can work even through strict firewalls — but it also means your security depends partly on the vendor's infrastructure.

TeamViewer: Enable Two-Factor Authentication (Settings > Security), set an unattended access password that's strong and unique, configure Allowlist to restrict access to specific TeamViewer IDs, and review the "Connections in Your Profile" log regularly for unrecognized sessions.

AnyDesk: Enable 2FA in Profile > Security, configure Access Control to require approval for incoming connections (or restrict to approved AnyDesk IDs), set a strong password for unattended access, and audit session history in the AnyDesk client log.

When to use RDP vs. third-party tools: For IT professionals and businesses, properly secured RDP through a VPN is generally preferable — you control the entire stack. Third-party tools introduce vendor dependency and, historically, have been vectors for supply chain attacks. For occasional personal use or consumer support scenarios, third-party tools are more practical — just ensure 2FA is active and unattended access is password-protected.

Remote Work Security Beyond Remote Desktop

Securing remote desktop is one part of a complete remote work security posture. The devices and networks you work from matter just as much as the server you connect to. Our guide on password security for remote workers covers the full picture, but the key additions for remote desktop users are:

Dedicated work devices: Avoid accessing work systems from personal devices, and vice versa. Personal devices may have less rigorous security postures, and cross-contamination creates risk in both directions.

VPN on all work connections: Even when not using RDP, working remotely means your traffic traverses networks you don't control. Use NordVPN or your organization's VPN on all work-related connections — including from home, not just from public networks.

Physical security: Lock your screen whenever you step away from a remote session (Windows key + L). Enable automatic lock after 5 minutes of inactivity. Remote desktop sessions that stay unlocked on unattended machines are a frequent internal threat vector in office environments.

Recommended Tools

For strong credential management across all your remote access accounts, NordPass provides zero-knowledge encrypted storage with a password health scanner that ensures your remote access accounts never share passwords with other services. For team password management with shared vault controls, 1Password Teams lets you provision and revoke remote access credentials without exposing underlying passwords — critical when team members need RDP access without being handed the raw credentials.

For the VPN layer that protects all your remote connections, NordVPN provides 6 simultaneous connections, Threat Protection (blocking malicious domains), and Meshnet for creating private encrypted networks between your own devices. See our full security tools guide for recommendations across every layer of your security stack.