&gt; &quot;can the All Writs Act compel a company to proactively defeat its own security measures?&quot;<p>I think there&#x27;s a qualifier on there that you&#x27;re missing. It&#x27;s not just if the All Writs Act can compel a company to undermine their security measures. It&#x27;s &quot;if a company can undermine their security measures, can the All Writs Act compel them to do so?&quot;<p>I think the answer is, arguably, &quot;yes.&quot;<p>But that&#x27;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&#x27;s probably true, too, IFF they can undermine it themselves.<p>But the All Writs Act certainly <i>cannot</i> bar a company from creating something that cannot be undermined.<p>So they&#x27;ll make firmware that can&#x27;t be modified without wiping the device.