Blogger security

The BBC is reporting that a group is cracking Blogger and posting malicious blog entries that cause the reader to download spam or malware. Links in the entries put trojans on your system and some of the entries purport to be looking for testers for software and digital greetings cards.
The subject line will generally give it away, apparently most of the entries have things like "HAHAHAHA, man your insane!" (sic) or other such TXT SPK drivel (not that I ever use such things, oh no...). Unfortunately the system can use news stories to update some of the headers so unless you're sure the message is from me, don't use the links - or, hover over them and have a look at the target for the link without clicking on it, much as one would do with phishing emails.
Which does raise an interesting point. If the virus writers were switched on, they'd use an entry warning of the virus and containing the link to the virus itself, disguised like this entry. Ohh, existential!