The alarming thing was that hijackers managed to take control of the Twitter CEO’s account. Not because anyone cares about Jack Dorsey, per se. But because of what that means.

Just about every journalist and social-media junkie on Twitter Friday afternoon had the same unnerving thought at the same moment: If Twitter can’t keep its own CEO’s account safe from hackers, how the heck can it make sure President Donald Trump’s account doesn’t get hacked?

It doesn’t take a lot of imagination to think of the kind of chaos that could be unleashed if Trump’s account, which has 63.7 million followers, suddenly tweeted declarations of security threats, disease outbreaks, emergency laws, or even war.