If they take a screenshot or video, maybe I can report the action back to sender notifying them that the receiver is not trustworthy. I'm told Snapchat does thi

If they take a screenshot or video, maybe I can report the action back to sender notifying them that the receiver is not trustworthy. I'm told Snapchat does this for screenshots. I'll look up expiring links but do they need people to upload content to a server first before generating an expiring link? Threat model - none as such. For a person who makes a living writing blogs for others, their threat model is plagiarism. For a startup sharing trade secrets with a VC, the model is violation of NDA and so on. E1: never mind about expiring links. I figured out what they are from the other comment. You mean Send, right?