People ask how to work your way to becoming the CTO of multiple $1B brands... you must use analogies to explain technology to non-tech people... here is my example of DDoS. A DDoS attack — that's 'Distributed Denial of Service' — is like a hot-dog eating contest where your mouth is the website.
Normally you (or the site) can only handle so many hot dogs at once before you have to stop. But the bad guys don't play fair. Instead of you eating them yourself, suddenly a whole crowd shows up from every direction: Manny shoving from the left, Jason from the right, RD straight up the middle, then Ben, Dodd, and dozens more piling on. They're all working together, stuffing hot dogs faster than you can chew or even swallow.
Pretty soon your mouth is completely jammed — nothing else can get in or out. The eating contest stops cold. That's exactly what happens to the website: real customers can't get through, everything freezes, and often the attackers send a ransom note: 'Pay us or we keep the hot dogs coming.