I've been using this plugin on my blog and it's been online more than a year. Recently I receive many trackback spams in my 404 errors log, started about a week ago and now it's increasing.
Is this kind of trackback is the same with WordPress trackback?
Why it just appear recently? Not a year ago?
Another new kind of spam/hacking attempts?
How to stop it? Their IPs are never the same, can't block.
Does anybody has similar problems?