There’s a myth that Macs are virtually immune to malware and viruses. But it’s exactly that: a myth. While Macs may face fewer threats than Windows computers, they are still vulnerable to a wide array of cyber risks. Fortunately, protecting your Mac is fairly simple.

At the end of World War I, German engineer Arthur Scherbius constructed a device that would become central in another worldwide conflict of unimaginable magnitude over 20 years later: the Enigma machine. The machines, which steadily became more complex with each iteration, consisted of a series of rotors that, by themselves, encrypted messages input via the attached typewriter. Each rotor performed a simple substitution cipher, but when run through multiple rotors, the encryption reached a staggering level of complexity.