I've used various delivery apps like Blackboard in online and classroom situations for years.
Students cheat all the time and do so with embarrassing transparency.
It happens in the classroom as well. I watched a student in the back row copying answers off another student during a mid-term exam. He was copying from some dumb bunny who was taking my course for the second time having flunked it the semester before.
I remember thinking, "Don't cheat off her her you fool. Cheat off this guy in the front row. He's going to ace this class."
I finished correcting an online final exam this morning for 20 students. How do I know they cheated?
About 5-6 of them made the same spelling mistake in answering a question with "Issac Newton." Pathetic.
A lot of people misspell Isaac.
Ha! Back in H.S. one of my football pals was copying off of my test in Chemistry class... I wrote “Punt” as one of my answers... He broke out laughing...
Not trying to get a “top this” going but I have had students-on more than one occasion over the years-actually copy the name of the student they were cheating off on their paper.