The project was on the brink of collapsing a few years back, there was a ProPublica article back then that shed some light on what you're asking. https://www.p

The project was on the brink of collapsing a few years back, there was a ProPublica article back then that shed some light on what you're asking. https://www.propublica.org/article/the-worlds-email-encryption-software-relies-on-one-guy-who-is-going-broke https://www.propublica.org/article/the-worlds-email-encrypti...