Did you know that Elastic Block Storage (Amazon EBS) has a "public" mode that makes your virtual hard disk available to anyone on the internet? Apparently hundreds of thousands of others didn't either, because they're out there exposing secrets for everyone to see.
I tore apart the petabytes of data for you and have some dirty laundry to air: encryption keys, passwords, authentication tokens, PII, you name it and it's here. Whole (virtual) hard drives to live sites and apps, just sitting there for anyone to read. So much data in fact that I had to invent a custom system to process it all.
There's a massive Wall of Sheep out there on the internet, and you might not have even noticed that you're on it. Actually, you should stop reading and go check that out right now.
See Ben Morris present on AWS security at DEF CON 27.