DOUGLAS Day is profiled as a full-time professional hacker who also serves on the Hacker Advisory Board at HackerOne, with more than 95% of his income coming from bug bounty hacking and the remainder from occasional contracted pen testing and red teaming. The interview, written by Kevin Townsend, notes that Day became a full-time hacker on 5 July 2024 after building a substantial track record through HackerOne, where he earned his first bounty in October 2018 and had accumulated US$92,000 by the end of 2019.
He describes how bug bounty programmes demonstrated the value of finding bugs in software with large engineering teams and high payoffs, which motivated him to switch from a day job to hacking full time. Day’S approach to hacking blends curiosity with method, likening disassembly and reassembly to opening the hood of a car and creating outcomes not intended by developers.
He explains that his decision was driven by practical family considerations rather than a psychological need, and he emphasises the legal and ethical reasons for avoiding illicit markets. According to Kevin Townsend.