The number of publicly reported data breaches in the United States rose by more than 40 percent in 2007. Thumbsucking – intentional or unintentional use of a portable storage device to download confidential data from a network endpoint. The physical size and large storage capacity of these devices make them a potential data breach time bomb. In minutes, a rogue user can load proprietary files on to a thumb drive unnoticed and potentially expose a business to a massive data breach. IT organizations need an automated way to monitor the endpoints to make sure the set policies are being followed.”]
Source: https://www.csoonline.com/article/2118845/the-thumb-sucking-threat.html