Some hard stats on
US CBP traveler screening from
https://www.cbp.gov/travel/cbp-search-authority/border-search-electronic-devices emphasis is mine:
Of the 420 million travelers CBP processed at ports of entry in FY 2024, 12,660,784 (3%) travelers were referred for a secondary inspection.
A border search of electronics is not a required action during a secondary inspection. In fact, CBP only conducted border searches of the electronic devices of 47,047 travelers in FY 2024, representing approximately 0.3% of secondary inspections and less than 0.01% of all arriving international travelers encountered at ports of entry.
Of the 47,047 border searches of electronic devices encountered at port of entry, 42,725 (90%) were basic searches in which the devices were not connected to external equipment to review, copy and/or analyze its contents.
Given that - I for one have zero concerns crossing US borders. Of course regarding
other countries could well be a different story... It all depends on their own laws.
As a Frequent Traveller with over 10 million air-miles to my record from when I worked as an industrial laser Engineer for over 48 years flying all over the US and the world, at least 1/2 of the miles are from international travel. In all those years only 2x did I have to go through any sort of secondary screening in ANY country and none involved searches of my computer or phone. They were only interested in the contents of my service tools kit.