I’m sure there will be some blog posts soon. The encryption stuff is really neat.

Thanks for the downvotes folks, confirming my experience that this forum is incapable of engaging in a rational discussion of privacy and information security, and its members operate from a nonsense threat model. By far the biggest risk to most people's personal privacy is that someone will access their email. The easiest way to do it is to be on the staff of the email company, or to infiltrate their systems. HEY's own marketing materials state that they do not encrypt their data at rest, so I want to know what protects my data from the guy who is the HEY database administrator, or the low-paid datacenter tech who swaps out the broken disks.