It is suggested that Google is looking into whether employees in its China office were involved in the attacks on its network that led to theft of intellectual property.
Insiders could have played a part in what is believed to have been a multi-pronged attack on the company.
Reuters reported employees in the Google China office were put on leave and others were transferred. Employees in some offices were temporarily cut off from the network so Google could run tests and scans to ensure that the network was secure.
CNet News reports that a Google spokesperson declined to comment on specifics of the attack.