Hackers and scammers never stop inventing new strategies for stealing from people. But, how you avoid these scammers is still the same ways stop installing apps from unknown sources, make use of the main app stores whenever you want to install an application.
Stop opening unsolicited mails, when you see emails from people you don't know, just delete it immediately. And another thing is to avoid giving out information about yourself because when they lay hands on your information they can as well use it to do something against you. I'm always careful with how I use cryptocurrency because I know that they are not like PayPal, there is no way you can reverse your money, once it's sent, just say bye-bye to it.
Most people have never treated their online security as something important because for the most part of their lives they have relied on centralized institutions to protect them, but we know that is not true with bitcoin and cryptocurrencies in general, your coins are as secure as you make them be, and if you install your wallet in the same computer that you use for your everyday life and you have no problem installing software from unknown sources then it is obvious that at some point you're going to lose your money.