Breach
I received an email from "Firefox Monitor" which stated "Search results for your [removed email from public forum] account have detected that your email may have been exposed. We recommend you act now to resolve this breach." Was this from you? Was this a phishing attempt? Was it sent by Firefox? I have reset my password and turned on "two-step" authentication. Is this enough? How was this breach made? How can this harm me?
ప్రత్యుత్తరాలన్నీ (2)
Hi Laura, you may be subscribed to Firefox Monitor (article: Get started with Mozilla Monitor).
If in doubt, you can search directly on the Firefox Monitor site or on the site of the company that provides the data to Mozilla:
Each breach has its own details, and that can help guide you in deciding what, if anything, to do.
For example, if you have a Twitter account, apparently someone scraped all our email addresses and public profile data (but hopefully not private data). In that case, since passwords weren't compromised, you wouldn't need to change your password but you might be a little more wary of possible fake Twitter notifications or other attempts to exploit your trust in Twitter (such as it is).
If you have a question about a specific breach and what implications it has, feel free to mention a particular one.
The email was likely about the Twitter breach with emails.