The developer of an ultra-secure version of Android, Graphene OS, is defending its approach after an activist used the operating system’s data-wiping feature to erase his phone and block federal agents from searching the device. “GrapheneOS is completely legal. We have no obligation to weaken any of the security protections it provides,” the software developer tweeted on Monday. “Laws attempting to make it illegal or require weakening the security would be unconstitutional.”At issue is an Atlant...