First, don't do anything that will likely hurt your own situation. If you have a reasonable belief the HR team or others would share your identity along with t

First, don't do anything that will likely hurt your own situation. If you have a reasonable belief the HR team or others would share your identity along with the disclosure, and you don't feel confident you can quickly find a new job , don't do it. First prize is speaking to them yourself. Let them know that you considered it inappropriate and why - that it might be hurtful to others (or that it was hurtful to you), may lead them to not enjoy working at the company, may lead to them having various troubles, &c. Probably no need to take it further if you believe they've taken your feedback on. Otherwise, assuming you consider it safe, speak to someone in HR at the very least. Ask them what the policies are and what would likely happen, and feel comfortable you can share the identity of the person without them getting instantly fired, if that's bothering you. If you can and feel comfortable, speak to their manager. That's what their manager is there to discuss with them. They hopefully have a good rapport and this can be brought up in their next discussion. If you have a good relationship with your manager, talk to them - but realise that they're obligated to inform the HR department about it. If your company has an "Employee Resource Group" for LGBT employees, speak to someone in it (if you're in a sufficiently "large tech company in the bay area", it will probably have one). (If you're at Facebook, firstly, I think you should feel comfortable doing all the above without fear of any downside, but I'd be happy to talk to you about it in person or online and connect you with the right people.)