"I heard that all the professors who attended Professor Doyle's lecture today had to sign a confidentiality agreement! What kind of content requires a confidentiality agreement?"
"I don't know, but I've never heard of having to sign a confidentiality agreement to attend a lecture."
"Is it possible that today's lecture by Professor Doyle involved some confidential-level stuff?"
"Confidential level?"
"Yes! For example, areas that we ordinary people simply can't access..."
At that time, on the campus forum of Yanford University, it was bustling with activity.
Suddenly, all posts related to Professor Doyle were removed!
When they tried to post again.
They were stunned to discover that contents related to Professor Doyle had become banned words, not allowed to be posted on the campus forum anymore!
Soon.
All the students received the latest message sent by their advisors.
Tonight, no one was allowed to discuss the content of Professor Doyle's class!