Hegseth's Pentagon office set up system so he could access Signal messages, sources say

The Pentagon set up a system in Defense Secretary Pete Hegseth's office that enabled him to check messages on the encrypted messaging app Signal while at the office, sources familiar with the matter told CBS News. Two of the sources said the system bypasses standard Defense Department security protocols. 

A computer monitor in Hegseth's office was installed to give him remote access to the Signal app and text messages from his personal cellphone, the sources said. Hegseth has used the system to check and respond to those messages at his desk, multiple sources said. 

The Associated Press earlier reported that Hegseth has made use of an unsecured internet connection, which is known as a "dirty line" among IT and cybersecurity professionals. The connection bypasses security protocols that defend against vulnerabilities that could be exploited by adversaries.