You don't, because you mostly don't have to unless you're installing random malware apps, same as a desktop computer. "If you use a phone that hasn't been updat

You don't, because you mostly don't have to unless you're installing random malware apps, same as a desktop computer. "If you use a phone that hasn't been updated in 2 months the evil hackers will hack into it and make the battery explode to kill you" is fear-mongering from hardware manufacturers.