Technology News Daily reports on the latest findings of Marshal’s Threat Research and Content Engineering (TRACE) team, indicating that the Srizbi botnet comprises 49.4 percent of all spam for the week ending May 4, 2008–making Srizbi “the world’s largest spam botnet.” (Marshal is an e-mail and Internet-content security service provider.)”Srizbi is estimated to comprise at least 300,000 compromised computers and sends more than 60 billion spam messages per day. Recently, the botnet has been used to promote