https://www.merriam-webster.com/dictionary/snake%20oil
snake oil (noun):
1: any of various substances or mixtures sold (as by a traveling medicine show) as medicine usually without regard to their medical worth or properties
2: poppycock, bunkum
Who are these people, companies, entities etc. in the tech world?
But the myriad of dudes who don't know even the very basics of cryptography but having some excellent sales skills make me feel sad sometimes.