rarer to be searched at the customs.
it's statistically rare to get hacked on your computer but does that mean we should just store our private keys on the hard drive? probably not right?
The question is, in what depth does the search go to? I mean, do they scrutinize your objects (& devices) or do they just do an ordinary check?
it all depends. if they find you suspicious and get a search warrant then they can seize your phone for forensic analysis.