OttoDestruct, a key WordPress developer and supporter: there is an “attack” on older versions of WordPress right now. The number of sites hit by this is growing every hour. Protect your WordPress blog now: UPGRADE NOW!!! (latest version is 2.8.4. I already did this one day after latest version released).

Matt Mullenweg: Where worms of old would do childish things like defacing your site, the new ones are silent and invisible, so you only notice them when they screw up (as this one did) or your site gets removed from Google for having spam and malware on it (How to keep your WordPress Secure).

More at Lorelle:

• Things You Need to Know Now
• How Do I Know If My Site Has Already Been Attacked?
• To Prevent Your WordPress Blog from Attack
• If Your WordPress Blog Has Been Attacked
• How to Respond to a WordPress Attack