It's all too easy to fake social media posts, and take snaps of them. There are plenty of clues that this is a fake screenshot. Photo metadata can sometimes reveal some secrets.

As I mentioned right at the top, proving that a screenshot is real or fake isn't always possible, as these images are so easy to create—but once you've worked your way through all those steps ...

A fake screenshot made to resemble a LinkedIn job listing for a CEO position at UnitedHealthcare, shared online days after the company's chief executive was killed by a gunman in New York, was ...