Hacking question [View all]

This morning I received and email from myself. I knew right off it was suspicious. I opened it up and it was from someone who claimed that he got my email and passwords from hacking me and that he knew everything I did, every website I'd been to, etc. Then, he threatened that he would publish pictures of me looking at porn sites (I don't look at porn sites) unless I sent him bitcoin.

Ok, so I did some research and found out that more than likely he was able to get my info from breaches of perhaps Linkedin and one other site, but that the password(s) he might have gotten were from that and from nothing current.

Any thoughts on this? I check my bank account daily for any problems and my credit card every couple of days plus both are very quick to send me possible fraud notices. Do I need to change all my passwords even though I have had no problems?

Thanks