From my perspective (and it is a very, very small perspective, I'll probably get torn apart), it's very hard to find a co-founder, especially a technical co-fou

From my perspective (and it is a very, very small perspective, I'll probably get torn apart), it's very hard to find a co-founder, especially a technical co-founder, without knowing them in person. You need a special set of circumstances for the stars to align: * The person needs to want to be a co-founder with someone they have never met before (or have only exchanged a few emails with) * They need to want to work on your idea (and be passionate about it) * They need to be someone who either has a bunch of free time and or unemployed, and also would be willing to work for lower than average salary or equity (or both) It ends up being a hard sell, or at the very least, limits the pool down tremendously. You need all 3 characteristics, so even if someone has 2 of the 3, you have to keep looking. As for how much info to disclose about the project, I'd be pretty honest about it, at least giving the general idea, but maybe keeping the specifics to yourself. Most people won't drop everything they are doing just to steal your idea.