Even those who consider themselves well educated about cyber crime and security threats—and who do everything they’ve been taught to do—can (and do!) still end up as victims. The truth is that, with enough time, resources, and skill, everything can be hacked.
The key to protecting your digital life is to make it as expensive and impractical as possible for someone bent on mischief to steal the things most important to your safety, financial security, and privacy. If attackers find it too difficult or expensive to get your stuff, there’s a good chance they’ll simply move on to an easier target. For that reason, it’s important to assess the ways that vital information can be stolen or leaked—and understand the limits to protecting that information.
A very good 2 part article about how to stay relatively safe on internet