Why have we asked you about a mail rule?
You're hopefully here because we just asked you if you created a mail rule (also known as mail filters in Google Workspace). We're asking because the mail rule does something suspicious like forward mail outside your organization and sometimes hackers like to do that kind of thing.
Your security team would usually do an investigation just to make sure everything is safe but we can save them a bunch of work if you know it's nothing to worry about.
So, if you recognize the rule as something you recently created we'll assume you're one of the good guys and leave the rule be.
If you don't recognize it, we'll disable the rule for you until your security team can check it out, just to be on the safe side.