NB: I don't need anyone to tell me to go check my credit report, cancel my card, not engage, etc. etc. I'm just really puzzling over this and wondering if someone has some insight as to how it all pieces together (or if it could be a bizarre coincidence).
Stage 1. Back in Jan/Feb of this year I was getting e-mails from a company I'd never done business with - it appeared that someone had fat-fingered their e-mail address and put mine in, instead of theirs. This happens to me occasionally since I have a simple e-mail address (first name last initial @ common email domain.com) with a very common first name. There was a pretty bad security problem at the company's website; when I tried to unsubscribe to the e-mails, clicking the unsub link automatically logged me into their site and showed me this person's full name, phone number, mailing address, order history, last four digits of credit card, etc. I contacted the company several times but eventually got it resolved. Forgot all about it.
Stage 2. Saturday evening (yesterday), I got an e-mail from a person with my first name. I recognize the last name too - it's the person whose information and order history I'd seen back in Stage 1. She is e-mailing because she thinks she may have accidentally signed up for something with my e-mail address (believable, because her e-mail is first name last initial number @ domain.com, and everything is the same as mine except the number). She asks if I can forward her any e-mails I get by accident. I wrote back and explained about the events of Stage 1 and say I haven't gotten anything recently, but is there anything else I should look for? She then tells me she "was filling out some credit card applications for my mother in law" and tells me the MIL's name. This is... weird? Concerning? Maybe she is trying to use her MIL's identity for credit cards and hide it from her husband/MIL? I can't really see how it could involve me, other than the e-mail thing.
Stage 3. Today I happened to log in to one of my credit card accounts to see if I have enough rewards to cash out. There's a $590 charge in there that I'm pretty sure I didn't make (I had to double check and make sure I didn't go shopping in my sleep, since it's a website I buy from on a semi-regular basis and had been on it a few days ago looking at something). Nothing in my account so I guess it's a credit card hack and not an account hack. Called the credit card company, they're issuing a replacement, yadda yadda. This timing seems REALLY suspicious after the events in Stage 2 (I think she must have been e-mailing me within hours of this fraudulent purchase since it was dated yesterday). But... surely if she'd hacked my credit card somehow, she wouldn't be e-mailing me about it!? The account I use on the website where the purchase was made uses a different e-mail address (and a different password) so it would be hard to tie that to my e-mail address that she e-mailed me at.
It's all completely believable as a coincidence, especially with the e-mails I got back in Jan/Feb (I mean, that is a hell of a long con, if it was a setup to make me believe that she would do the same thing now). And yet it's kind of hard to believe that sketchy credit card applications filled out with my e-mail address are somehow unrelated to my credit card being used fraudulently the same day... I mean, what are the odds that two very sketchy credit card things happen simultaneously and are unrelated?
So my question is: can anyone figure out what the hell is going on with this? Is there some way this could all be tied together? Am I being paranoid?