A lawyer for Xiaofeng Wang and his wife says they are “safe” after FBI searches of their homes and Wang’s sudden dismissal from Indiana University, where he taught for over 20 years.

A US-based cybersecurity professor and his wife have reportedly disappeared after they were fired by their university employer and their homes were raided by federal authorities, amid reports of an investigation into potential professional misconduct.

A tenured computer security professor at Indiana University and his university-employed wife have not been seen publicly since federal agents raided their homes late last week.