Inventor-controlled NPE DigitalDoors, Inc. has kicked off its first campaign with an Eastern District of Texas suit against IBM (2:22-cv-00457). The plaintiff asserts a group of five patents broadly directed to various aspects of data security technologies, with the defendant accused of infringement through the provision of the IBM Cloud Object Storage products and services. As RPX has elsewhere reported, DigitalDoors is one of 18 patent holders that appear to have made arrangements with the same funder, 17 of them having launched litigation to date.