The company in question GEMSA Pty Ltd of Australia got a patent on "Storage cabinets" on a computer. Pretty much a patent on folders or directories. Now they are suing everyone.
According to the EFF: "As far as we can tell, GEMSA seems to think that anyone with a website that links to hosted content infringes its patent"
https://www.eff.org/deeplinks/2016/06/stupid-patent-month-st...