From publisher blurb:
What is a Hack Pack?
A Hack Pack is a collection of Creative Commons-licensed (Attribution-Noncommercial-Share Alike 3.0 Unported) material for the Eclipse Phase roleplaying game. Usually Hack Packs contain graphics and art from each book, but they also sometimes contain other working files.
Use them in your game, in virtual tabletop software, when making fan material, as social media icons/backgrounds, or wherever else you like!
When possible, specific artist credit is included in each graphic.