Originally Posted by
BStrauss3
RDP transfers only the image of the screen, not the data on the screen itself. With powerful OCR available that's a very minor improvement.
OCR is a highly unlikely attack on RDP. Much more likely would be an attempt to sniff keystrokes.
Preventing data leakage is a major benefit of Remote Desktop solutions, but with the system being internet facing it's hard to imagine that's what they're really after.