Learn the way of the cracker, with your Defence Against the Dark Arts master, Professor Ben Everard
You're not being paranoid: hackers really are out to get you (and everyone else) and exploit you for profit. Cybercrime is already a huge problem. A survey for Get Safe Online Week (an initiative by Get Safe Online, a public/private partnership supported by the UK government) in 2014 found that over half of the people surveyed had been victims online. As more and more devices are connected to the internet, the problem is only going to get bigger.