They would need to accept and verify a flag from messages that the copycats can't reproduce. At the very least that would require a client update from anyone using official iMessage clients, which covers many millions of devices.
Unless they're able to hook into already existing flags/keys on the devices since they already verify application signatures and a whole other host of things.
Apple can probably do it, but much like jailbreaking how fast can they release breaking changes?
They would need to accept and verify a flag from messages that the copycats can't reproduce. At the very least that would require a client update from anyone using official iMessage clients, which covers many millions of devices.
Unless they're able to hook into already existing flags/keys on the devices since they already verify application signatures and a whole other host of things.
Apple can probably do it, but much like jailbreaking how fast can they release breaking changes?