Insider Threat - Money talks BS Walks - In this case - AT&T employees took bribes to unlock millions of smartphones, and to install malware and unauthorized hardware (rogue Wireless Access points) on the company's network.More than $1 million in bribes were paid to several AT&T employees.

The bribery scheme lasted from at least April 2012 until September 2017

Fahd bribed AT&T employees to install malware on AT&T's network at the Bothell call center.

In November 2014, as Fahd began having problems controlling this malware, the DOJ said he also bribed AT&T employees to install rogue wireless access points inside AT&T's Bothell call center. These devices helped Fahd with gaining access to AT&T internal apps and network, and continue the rogue phone unlocking scheme.

The DOJ claims Fahd and Jiwani paid more than $1 million in bribes to AT&T employees, and successfully unlocked more than two million devices, most of which were expensive iPhones. One AT&T employee received more than $428,500 in bribes over a five year period,

https://www.zdnet.com/article/at-t-employees-took-bribes-to-plant-malware-on-the-companys-network/