At an unknown date, Department of Defense Secretary Pete Hegseth set up Signal on his personal computer after bypassing Pentagon security protocols. This story was broken by the Associated Press on April 24.
The “dirty line,” an IT industry term referring to a connection “to the public internet where the user’s information and the websites accessed do not have the same security filters or protocols that the Pentagon’s secured connections maintain,” was established in Hegseth’s own office. This proved to be an egregious act.
Hegseth initially was going to the back area of his office where he could access Wi-Fi to use his devices, one of the people familiar said, and then he requested a line at his desk where he could use his own computer.
That meant at times there were three computers around his desk — a personal computer; another for classified information; and a third for sensitive defense information, both people said.
Because electronic devices are vulnerable to spying, no one is supposed to have them inside the defense secretary’s office. Important offices at the Pentagon have a cabinet or drawer where staff or visitors are required to leave devices.
Associated Press
The risk of electronic devices being used in Hegseth’s office is coupled with the threat of Russia-aligned hackers targeting Signal users, as well as a general intelligence threat from China.
While dirty lines can mask Defense Department users, as their IP address will not be one of those assigned to the Defense Department, accessing the public Internet comes with the severe risks of hacking and surveillance. Worse yet, Hegseth’s actions may be illegal, violating federal recordkeeping laws.
In 2023, former president Biden allowed for Signal to be used by government officials, so long as classified information and other sensitive material was not shared on the platform.
Despite this capriciousness toward classified and sensitive information, both Trump and JD Vance have continued to back Hegseth.
However, the Defense Department’s acting inspector general has conducted an investigation of Hegseth’s Signal use at the request of the Senate Armed Services Committee.
