Mailing list. Back in 2001 someone on a mailing list I was on was looking for a userland ESP (IPsec) implementation to do some fuzzing or something... And I j

Mailing list. Back in 2001 someone on a mailing list I was on was looking for a userland ESP (IPsec) implementation to do some fuzzing or something... And I just happened to have one that was 95% complete. Seeing demand for it, I wrapped it up and had a user of it. Fast forward a few months later, I lost my job in the common downsizing in 2001, he shot me an idea and then we were co-founders before ever meeting in person.