What does GitHub's security team even do?

Current discussions highlight the significant uncertainty surrounding the future of the multiplayer offshoot for Grand Theft Auto 6, with many questions remaining about what GTA Online 2.0 will entail. Simultaneously, inquiries have been raised regarding the specific roles and responsibilities of the security team at GitHub. Both topics reflect a broader curiosity about upcoming gaming developments and the operational inner workings of major technical security infrastructures within the global software industry.