There are safety measures one has take to deploy stuff I describe to protect against subset attacks like you mentioned as well as hackers using sleepers or logs

There are safety measures one has take to deploy stuff I describe to protect against subset attacks like you mentioned as well as hackers using sleepers or logs to identify monitors, etc. It's not easy stuff and definitely not something startups should take on w/o getting side-tracked. This is why I wrote "when applied appropriately" in my original comment.