The real deadlock wasn't security architecture, it was Apple's 18-month head start
On the surface this is a fight about device access. Apple says the DMA's interoperability mandate requires it to give third-party assistants the same deep capabilities as Siri AI, including reading and sending messages, making purchases, accessing files, and acting across apps [1][4]. Apple's engineered answer was the "Trusted System Agent," described as an intermediary that would let virtual assistants safely access the same features and capabilities as Siri AI for EU devices [1]. But the Commission rejected every proposal Apple put forward, along with its exemption request [1][2]. The most revealing detail surfaced in technical community discussion: the genuine sticking point was Apple's proposed 18-month phased rollout, which would have let Siri AI launch first and granted third-party assistants parity only later [1][2]. That reframes the dispute. A head start is not a security control; it is a competitive advantage. Apple asked for time to ship its own assistant before rivals could match it, and the Commission treated that as an attempt to delay compliance rather than achieve it.


