Protects files by securing links to them using MD5 hashing. This way nobody ever knows the true location of your files. Links can also have an expiry time from 1 minute to several years if required making it easy to control access. Linklok URL can also be used with a download form to email secure time limited links to a user. User only gets the links if they enter a valid email. Can also filter out free or other types of email addresses if necessary.