I'm not sure what to do with the data breaches Microsoft Defender reports

First of all, I realize that this forum may not be the right place for me to post any question about Microsoft Defender. If this is the wrong place, I apologize and please direct me to the correct place.

I have a Microsoft 365 for Family license, so I thought this forum might be the correct place for me to post a question about Microsoft Defender. When I logged into my Windows profile on my Windows 11 desktop, I was presented with a popup from Microsoft Defender. It asked me to fill out some additional information, which I did. At the end of that process, it told me that I was listed in some data breaches, that it found on "the dark web". But many of them (there aren't a lot of them) have unhelpful information. For example, one reads:

"Compromised info found on Aug 19, 2022

From an unknown source"

Then it lists my email address and a glyph for an email password. But the bottom line is I don't know what to do with this. There's a button that's labeled, "Take action", but I'm not comfortable clicking on a button when it appears to me like Microsoft Defender hasn't a clue as to what to do about it.

So, what should I do with this ambivalent information?