Source: Cameron Summerson, HowToGeek.com, June 4th, 2018
It’s commonly suggested that Android has a “virus problem.”
But, while there are viruses and malware on Android, it’s not really something you need to be concerned about—as long as you pay attention to what you’re doing.
Android itself is a pretty secure operating system—a statement that has only gotten truer over the last few years. Right out of the box, all mainstream Android phones feature a locked bootloader to prevent access to the system partition. Optional “sideloading” of non-approved apps is also disabled by default.