I suspect Israel does whatever they want under the auspices of national security, gives “private” cybersecurity corporations latitude to circumvent international laws, then packages it all up to sell to the highest bidder.
Like at the very worst - selling "cyberweapons" would follow the same rules as selling actual weapons.
I don't super follow US politics, but i don't think we are at the point where ICE is comitting crimes against humanity - which i think is what would be required for this transaction to violate international law.