I remember a while back Apple filed a patent that allows concerts to disable iPhones cameras if a certain signal is emitted from the stage. Apple never implemented this, but my pessemistic ass always try to think of worse case scenarios, like being used by government. Do you think this could occur in the future?
Source: https://www.bbc.com/news/technology-36672001
You can search “Apple Concert Disable Camera” and find more about it.
Also any older tech won’t be affected. Worst case, bring on that old camcorder or tape recorder.