Even encryption technology itself was listed by the US as “national security relevant” or whatever in an attempt to prevent export. The encryption standards published and recommend by the US were also crackable by intelligence agencies for a long time, may still be.
They’ve been trying to get at our digital devices for over thirty years https://en.wikipedia.org/wiki/Clipper_chip
Even encryption technology itself was listed by the US as “national security relevant” or whatever in an attempt to prevent export. The encryption standards published and recommend by the US were also crackable by intelligence agencies for a long time, may still be.
And that’s just the tip of the iceberg.
https://en.wikipedia.org/wiki/Export_of_cryptography_from_the_United_States
