You can tell that to

Ryan Lackey has traveled to countries like Russia or China[;] he has taken certain precautions: Instead of his usual gear, the Seattle-based security researcher and chief security officer of a cryptocurrency insurance firm brings a locked-down Chromebook and an iPhone that's set up to sync with a separate, nonsensitive Apple account. He wipes both before every trip and loads only the minimum data he'll need. Lackey has gone so far as to keep separate travel sets for each country, so that he can forensically analyze the devices when he gets home to check for signs of each country's tampering.

Last time I travelled to the US, I brought my old phone. It had plenty of text messages, a few photos of family and nature, and nothing else. They didn't check it, but I guessed it would pass the "not a burner" vibe. Now I'm wondering, though, how people would react to me having no social media presence (other than Reddit at that time, which I accessed via browser). Not that I'm planning to travel to the US ever again, but I wonder whether there's a market for perfectly inoffensive fake social media accounts.