Once upon a time, ATS systems stored millions of stale resumes of any candidate that happened to cross its path. When new roles opened and well-meaning human beings attempted to apply or refer, these systems would mostly say, “Resume already exists in database.” If one were lucky, the ATS would say, “Hey! New resume. Let me replace the old one” and if luck had truly run out, it would save two versions leaving the poor recruiter confounded. Then suddenly, GDPR happened.