You can send a report to the BizHawk team here on GitHub, where you can also see all previous reports which have been made public.

Issues which have been elevated to security issues won't be shown there—they will instead be pinned at the top of the list until the next release.

If you don't have a GitHub account, please contact one of the below developers directly.

• YoshiRulz: via email or IM
• adelikat: PM on TASVideos