> Recently the company got a fresh incentive to go all-in on silicon: revelations that microprocessors with components designed by Intel Corp., Arm Holdings Plc and Advanced Micro Devices, Inc. are vulnerable to hacking.
Apple isn't immune: https://support.apple.com/en-us/HT208394 (indeed seems iOS devices suffer from Meltdown where AMD devices do not).
> The result: a chip powerhouse that could one day threaten the dominance of Qualcomm Inc. and even, eventually, Intel.
Surely to threaten dominance Apple needs to start selling it's chips to other people? Whilst it's possible it would run counter to the way Apple likes to do things, namely get as much in house a possible to get maximum control and seamless vertical integration, they've never shown any interest in selling bits of their technology to others (well recently anyway).