Remote Desktop Protocol (RDP) has its own vulnerabilities and needs to be appropriately secured.
https://mmishou.wordpress.com/2010/04/13/passive-dns-mining-from-pcap-with-dpkt-python/
Ransomware-spreading hackers sneak in through RDP
https://www.n00py.io/2018/08/bypassing-duo-two-factor-authentication-fail-open/