Yes/No ?
https://help.twitter.com/en/rules-and-policies/reporting-security-vulnerabilities
> On Jul 18, 2019, at 13:45, Ken Gilmour <ken.gilmour@gmail.com> wrote:
>
> Anyone on the list know how to contact the Twitter Security team?
>
> Seems the new update allows an attacker to modify other people's tweets. The "Hackerone" form for reporting a vulnerability is the wrong form and the "My account has been hacked" form is also the wrong form. The whole site has been compromised, I have evidence and can't contact anyone due to the lack of an appropriate form and the fact that the security@ email address doesn't work.
>
> Thanks!