good old days just less than 20 years ago back at Sun when we were strictly instructed that the computer monitors must be off when the photos would be taken. How times and basic norms of opsec have changed - these days you just tweet the straight photo of the classified monitor screen https://www.npr.org/2019/08/30/755994591/president-trump-twe...
There was also a photo from the Iranian Nuclear agency and it had photos of their systems and software on their website or something and it was scraped for info prior to Stuxnet.
MacAfee let some "Wired" photog take a digital photo without ensuring geotagging was disabled or removed from the metadata when he was prancing over Belize as he was escaping some plot to frame him.
Those lapses happen.