“Ask if you are working on a system that helps to control others or if you’re working on system that helps to enable others to have control over their own lives,” Appelbaum states. For example, “if you are working on deep packet inspection that will be deployed on people who do not have a say in it, you are probably working for the oppressor.” He adds one can make a choice. “It is possible to make a living making free software for freedom instead of closed-source proprietary malware for cops.”