Not a hard trophy, just a time consuming one, that is made much easier when you start doing some of Matt's loyalty quests. As one of his rewards, he will give you a collectible finder that shows all the data clusters, audio logs, and Zinyak statues that you either need to collect or destroy for challenges and individual trophies.
The main thing I always forget, even after several playthroughs, is that you can go to your map and filter out everything but collectibles by using the directional buttons. So that last data cluster you can't find? Filter out your map and it'll show up bright as day for you to stick a waypoint on it and collect it. This is the guaranteed method of grabbing everything with minimal frustration. Just don't forget it hours after you've looked around like I did....twice.