I have a colleague who received a rather suspect SMS that, at first glance seemed to advise of money rcvd from someone and a few minutes later someone called to say he had sent the money and error and has a crisis of sorts and would like the money sent back. I have seen this twice. Tricksters at work. When using mobile money I have always wondered about the privacy of such transactions since one is required to sign a sheet with details of the transactions - details which are clearly visible to everyone. I note both ZAP and Mpesa have such sheets. It would only take a keen eye to quickly pick out a number next to a high value, memorise it - under the pretext of doing a small transaction and then claim a victim within hours of the person depositing money into their account. I suppose unregistered mobile numbers must now be de-activated ASAP. Be on the look out.