When you buy a new phone, your immediate inclination is to get everything downloaded, installed and signed in as soon as possible. Hold on a moment, though. That phone could have been sitting in its box for several months, during which time the operating system hasn’t been receiving the latest updates. Before doing anything else, check for OS updates and install them to ensure you have the best level of security right from the start. This is especially important if you’ve bought a second-hand or refurbished phone.