I don't know quite what this was, but out of the blue, I just received a slightly disturbing notification from a dark web monitor apparently attached to my security software that I previously didn't even know was there. I have never heard a peep out of it before. But now it's telling me that my data has been compromised with respect to 11 websites and that I need to change passwords re those sites, and re any other sites with the same passwords, immediately.
What is also peculiar is that of the 11 websites quoted, only 3 are sites that I know about and that I'm aware of having passwords for. But one of those three is HSX!
I have really no idea how these things work, and it's probably nothing very significant, but I have never had any such notification before, and I have just changed my HSX password as a result, as advised.
And, just in case, I thought I should mention it here as well.