Hello all, It's my pleasure to join the MacRumors community. A sleek new iMac 27 inch 2013 has been shipped yesterday. A SSD as the only mass storage is populated in that iMac. The user did not yet start to store sensitive data on ssd. The question is what needs to be done now (yet before starts to use ssd to store own sensitive data) in order to achieve two goals listed below? 1. If some when in the future (middle, or long term) this imac should be resold - change of ownership - the sensitive user data can be removed from ssd 2. Is some when during the warranty period the appliance should need to be sent to any repair service the sensitive user data is save from unauthorized access. The full reliability of removal of user sensitive data and protecting those data from unauthorized access while the appliance in foreign hands for any reason has in this case the highest priority. The used measure of protection should not show any negative impacts in other computing aspect while using this appliance. Please see the ssd and all resulting impacts as central point of the question. There are plenty of discussions in web to be found in regards to reliability of data removal on ssd and to reliability of data encryption on ssd. For a newbie however it is not easy to see what of been pointed out is still valid today and what not. I guess the full disk encryption by a ssd external software solution might be oversized - only the sensitive user data needs to be protected. Furthermore such approach seems to have sever impacts in other computing aspects. Similarly the ssd internal encryption solution.