Encrypt all the things!

Yeah, that will happen.

I don't have Facebook and I am both careful with what I put on Twitter as well as using https://www.tweetdelete.net/ to purge tweets older than a given point in time (2 weeks, as that is the longest I've seen an active conversation last there).

Border staff typically do not use advanced tooling, they have their core database and then they have Google. So deleting publicly visible is a good thing to do.

Harder is what to do if asked for passwords to social media accounts. On that front it's also better just not to have the account in the first place.

Going back to travelling in general, one of the security guys where I work flies by these rules:

• Anything you check-in, don't expect to see again
  
• Anything you carry, will be searched
  
  

He flies with crap phones, set up with minimal info, with VPN (internet kill switch enabled) and wipes the device of local data before he flies. It's an interesting combination as he'll turn a phone on if asked, but there won't be any data on it and it won't connect to anything without that VPN running.

He's gone for the minimum level of compliance, with a little inconvenience for himself. He's not on social media sites.

Also interesting... define social media. I think the only reason forums are not counted is because of the lack of a key feature... connections between people.