Re: I've seen a definite uptick in these
"They all use the same throwaway password I only use on websites that insist on registration but hold no other information beyond an email address, password and login name."
Yeah, I got one like that too the other week. Most interestingly, it was addressed to SVP@mydomain, an address used exclusively for dealing with SVP. I stopped using that address and dealing with SVP after I started getting spam to that address and on contacting them, they claimed they'd not been hacked. The webcam spam, as with yours and others, included the password I used there too. That pretty much proves they did get hacked and then lied to me about it. svp.co.uk are still in business, but I'd certainly never deal with them again.