Remote Desktop Protocol (RDP) is a tool that allows users to access and control a computer from a remote location. It is an incredibly convenient tool for businesses and individuals alike, especially in today’s work-from-home environment. However, it is also a potential security risk if not properly secured. Attackers can use RDP to gain access to a computer or network, steal data, or install malware. The good news is that changing the RDP port can help prevent these attacks.

By default, RDP uses port 3389. Attackers are well aware of this, and frequently target this port with scanning tools looking for computers that have RDP enabled. Changing the port from the default can make it more difficult for attackers to locate and access your computer.

Here are the steps to change the RDP port to a more secure port:

1. Open the Registry Editor: Press the Windows key + R and type “regedit” into the Run box, then click “OK.”

2. In the Registry Editor, navigate to “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp.”

3. Double-click on the “PortNumber” entry.

4. Select “Decimal” and enter the new port number you want to use (e.g., 54321).

5. Restart your computer for the changes to take effect.

After making these changes, you will need to use the new port number when connecting to your computer via RDP. For example, instead of entering “192.168.1.100” into the RDP client, you would enter “192.168.1.100:54321”.

It is important to note that changing the RDP port is not a foolproof solution. Attackers can still find your computer by scanning all ports, or by using other methods such as phishing emails or social engineering. However, changing the RDP port can make it more difficult for attackers to gain access to your computer, and it should be part of a larger security strategy that includes strong passwords, two-factor authentication, and regular software updates