The most popular images on Docker Hub are official / library images, they are curated and monitored by Docker for best practices and security vulnerabilities. I'm not saying that means you should trust them completely, it's always best practice to read the source of an image before you use it.

This doesn’t mean that YOUR secrets are exposed by using the image, btw - this means that whomever built that image would be accidentally exposing their secrets.

Unless you built the image and added your secrets to it and then uploaded it to a public Docker registry. But again, that’s not a flaw in Docker.

Sane way you cant be sure your soap isnt poision, sure the manufacturing line could have messed up but like.. the shady burger joint down the street is a lot more likely to have slipped up. The probability of anything is not zero, but we ignore a hell of a lot of possibilities

There is a nonzero probability of getting hit by a meteor at any time. A woman in Alabama was hit by one while she was inside her home, you're not even safe indoors!

You all might think I'm a fool for wearing a helmet every time I leave my definitely meteor-proof house, but I'm not taking any chances.