IFO is the acronym for Insignificant Floating object. In one of my WIPs, the main character makes a living of treasure hunting in space. Ever since man began to explore deeper into space, abandoned alien ships and wreckage is found floating adrift. Some are the tombs of ancient civilizations.
My character looks for these ships and explore them for valuable treasure which could be about anything. Certain companies pay well for ancient technology and the never before seen. He has an eye for valuable technology, and anything other he calls IFOs, Insignificant Floating Objects.