Have you been manipulating your activity trackers to claim reward or incentives from you health care providers and insurance companies? This may not be possible from now on. Researchers from the Rehabilitation Institute of Chicago (RIC) in the US have designed a new and interesting way to train smartphone trackers to spot the difference between fake and real activity. We have shown how to train systems to make sure data is authentic said lead study author Sohrab Saeb a postdoctoral fellow at the Northwestern University. In the study scientists showed smartphones rigorously trained on normal and deceptive activity can spot