Also question is, is it safe to expose RDP to internet?
RDP ports are often exposed to the Internet, which makes them particularly interesting for attackers. In fact, accessing an RDP box can allow an attacker access to an entire network, which can generally be used as an entry point for spreading malware, or other criminal activities.
Also, does RDP use internet? Also, Windows RDP will only work on your local network. You'll need to either forward ports on your router to access it over the internet, or use a VPN.
Furthermore, should I open RDP to the Internet?
RDP should never be open to the Internet. The internet is continuously being scanned for open port 3389 (the default RDP port). Even with a complex password policy and multi-factor authentication you can be vulnerable to denial of service and user account lockout.
Why is RDP insecure?
There is too much focus on RDP being insecure when the real issue is that RDP is exposed to the Internet and admins use easy to guess or same passwords for all their logins. RDP in and of itself is not insecure, although it's not the most secure product out there.
