> I thought it was because there are at least a dozen ways to securely encrypt/decrypt data, most of which are audited.
Any yet people still implement on top of and leverage those lower-level libraries poorly.
>Skimming their site they seem to offer some sort of encryption + service hosting?
I believe they have a hosted SaaS solution now, but Vault is FOSS: https://github.com/hashicorp/vault
>I don't see how this is much different than any of the other options out there.
Vault manages your application-level encryption so you don't have to. That's a lot different than most of the options out there.
>And not really an equivalent to using RSA as it looks to be tied to their hosting.
It's not tied to their hosting. Spin it up on some VMs or a kubernetes cluster.
>I also tend to not trust for profit companies with things like this (esp. if it's closed source or I can't know what the servers actually run).
It's open source and HashiCorp... That's like saying you don't trust Linux with things like this because of RedHat.
>Has this service been audited?
Yes.
>Has it withstood against the US court system like veracrypt has multiple times?
Yes.
>Do their founders have any history that goes against good data security?
How do you not know who HashiCorp is?
>Your post sounds like an ad if I'm being honest.
Nope, just a happy user.