If you ever go back to previous posts on this blog, and read the comments, you may have noted that some of the comments aren't really comments at all: they're adverts for porn of various varieties.
Now whatever one's feelings about porn, pro or anti, we really don't need links to such sites in the comments section of this blog. Well I don't anyway. And back in the good old days, say a year ago, I was able to delete these non-comments as and when they appeared, because there weren't many of them.
Then we got a whole flood of the things, generated by a machine somewhere, and I had to resort to using a Blogger filter. This involves asking would-be commenters to take one further step before being able to post a comment, which was a nuisance but it did succeed in blocking fake comments for a while.
Now, however, it seems that the spammers have found a way round that, and the porn links and adverts for fake Rolex watches and so forth are turning up again. Until and unless Blogger figures out how to stop them we shall just have to put up with them.
Of course some people used to think that such ads were the best part of the show, but that's another story.
However, the real point of this post is to say that, if you want to know more about all the various wicked things that can be done -- by spammers and the like -- to poor harmless bloggers who never hurt nobody nohow, then there is a handy summary recently issued by Semantec. The answer, if you are worried about the effect of these things on your computer, is to probably to buy a piece of Semantec software. What a surprise.