The bad news: This can and obviously will be abused - be it by the secret services or hackers.
The good news, I suppose: As fast and scarily as the tech to fake things is evolving, so is presumably the tech that detects fakes.
The good news, I suppose: As fast and scarily as the tech to fake things is evolving, so is presumably the tech that detects fakes.
In general, you need to have examples of a type of fake to detect it.