An example of this threat came to reality in 2008 when Russian malware made its way into the SIPRNET system by way of a thumb-drive which was plugged into classified-level computers accessing the network. These computers lacked virus protection due to their detachment from the internet, and were compromised as a result. The virus, once gaining access to these networks, acted as a 'beachhead' which allowed the transfer of data to foreign computersLynn III, W. J. (2010). Defending a New Domain. Foreign Affairs. Retrieved from https://www.foreignaffairs.com/articles/united-states/2010-09-01/defending-new-domain The hack was, at the time, the largest compromise of US cybersecurity in history, and initially led to a ban on the use of thumb-drives. this was later repealed.Shachtman, N. (2010, October 2). Hackers, Troops Rejoice: Pentagon Lifts Thumb-Drive Ban. Wired. Retrieved from https://www.wired.com/2010/02/hackers-troops-rejoice-pentagon-lifts-thumb-drive-ban/
