Interesting story on NewsBytes:

Security Firm's Site Preview Marred By Nimda Worm

The roll-out of a new Web site design for Hitachi's software security firm Quadrasis was marred this weekend by an infection from the Nimda worm.
Now that sounds like a really qualified security company, doesn't it?

Ok, to their defense:

The server was running an unpatched version of Microsoft's Internet Information Server (IIS) software and was operated by an external Web design firm, according to the Quadrasis representative.
It was not their own work ... but they should have advised the Web design firm better ...