> "can the All Writs Act compel a company to proactively defeat its own security measures?" I think there's a qualifier on there that you're missing. It's not

> "can the All Writs Act compel a company to proactively defeat its own security measures?" I think there's a qualifier on there that you're missing. It's not just if the All Writs Act can compel a company to undermine their security measures. It's "if a company can undermine their security measures, can the All Writs Act compel them to do so?" I think the answer is, arguably, "yes." But that's a meaningful distinction because the 5C lacks trusted execution, and newer iPhones have it. I just read an article where Apple claims the precedent set in this case could force them to undermine phones with trusted execution. And that's probably true, too, IFF they can undermine it themselves. But the All Writs Act certainly cannot bar a company from creating something that cannot be undermined. So they'll make firmware that can't be modified without wiping the device.