There are a ton of messaging apps on the market – and there are actually quite a few that are very secure and private. I would argue that there is no such thing as a “perfect” secure messaging app. There are several threat models to account for, each with different requirements. Today we’re going to talk about the pros and cons of decentralized messaging with the co-founder of Session, Kee Jeffreys. These messaging apps don’t rely on a set of servers hosted by the provider, but rather on a mesh of nodes run by hundreds or thousands of others. We’ll also discuss the importance of protecting metadata and the notion of “permissionless access”. Session just announced support for key features in the upcoming version 2 of their protocol, including Perfect Forward Secrecy (PFS) and post-quantum encryption.