Recently, I had to send some private files to my employer. I'm not keen on the idea of someone else other than myself and the recipient seeing what I've sent. A friend recommended me this service called pCloud Transfer. It is a simple system, which encrypts and transfers your data. I didn't have to register for anything and the service is free. I'm happy with it, but I was wondering if there were any similar services with which you can safely transfer your data?