It’s interesting to speculate how three seperate hospital computer systems have managed to simultaneously fall victim to malware. See http://news.bbc.co.uk/1/hi/england/london/7735502.stm. Given that the rest of us have not today fallen victim to anything new, and that other hospitals appear to still be functioning, it looks like a highly targeted attack. The Register reports that it might be a case of the Mytob worm however, I’m dubious: Mytob is more nuisance malware rather than disruptive, it’s signature is well known, and I doubt it would result in the networks of three hospitals being so thoroughly disrupted. If it were a new variant evading the anti-malware protection, then we’d all be seeing it.