I'm concerned about my Samsung 10.1 falling into the hands of a knave or vagabond. The instructions say that if I encrypt it and want to decrypt at a later stage I will have to revert to factory settings and lose all my data, apps. etc. So, I'm not too inclined just to experiment. Has anybody any experience of encrypting a 10.1? In particular does it have any noticeable effect on processing speeds. I wouldn't want it to become sluggish. Are there any disadvantages to encryption that anybody has first hand experience of? Any other advice would be welcome too.