Hackerone impersonation

Summary

We were not blacklisting some of the handles that we use for social media (specifically, 'hacker0x01'). As such, a user might be able to convince somebody that he/she was actually a member of HackerOne staff by registering that username. We have blacklisted the specific handle in question. We will not be attempting to claim every possible variant, however, as that would never end (and we won't consider any such reports eligible).