OK, I won't moan about the NSA and GCHQ snooping overreach anymore - just secure everything you do to keep them and any other computer criminals out of your systems... One way to improve security, is to install a proper GNU/Linux Android system on your stock smart phone. To do that, you need to have super user (The Linux administrator account is known as the root user) access. The process is generally described as rooting your phone. By default, most phone manufacturers disable root access, since they do not want to be faced with a support nightmare due to millions of clueless users messing up their phones. Once you have root access, you can install different software applications and delete the crud applications that the phone comes with. There are various ways to get root access - you can do a minimal thing and only create a root account and install one or two basic utilities for root access, or you can completely replace the half baked Linux kernel that you get with y
Autonomous planes, trains and cranes...