Just like with every market or service in Kenya, everyone "knows a guy" who does everything from picking up empty gas cylinder for refilling to washing clothes. The easiest way to get Bitcoins in Kenya is through what are called "trusted dealers". You send the money (MPesa, Paypal, Skrill and Payoneer are the most accepted) and they send the Bitcoins. For those who don't know any, legitimacy questions are handled via online communities. It is trading based on community trust and even if one person tried to hijack the system, within no time they are flagged as cons