Kali Linux is a security-focused operating system you can run off a CD or USB drive, anywhere. With its security toolkit you can crack Wi-Fi passwords, create fake networks, and test other vulnerabilities. Here’s how to use it to give your own a network a security checkup.
This post is part of our Evil Week series at Lifehacker, where we look at the dark side of getting things done. Knowing evil means knowing how to beat it, so you can use your sinister powers for good. Want more? Check out our evil week tag page.