AUCKLAND, Jan 19 (Reuters) - Cyberlockers, are also known as cloud storage or file storage services, enable users to keep files, or back them up, on the internet. Users can access files from these virtual storage lockers, which operate on remote servers, from any computer with an internet connection, often more quickly than on personal computers. Many of these sites offer limited free storage, and users can pay for more capacity through subscriptions. WHAT ARE THEY USED FOR?