There’s a ton of spam on the Internet-we all are painfully aware of this already. However, what once required an actual person to send is increasingly being taken over by botnets. A new report from Symantec’s MessageLabs says that more than 80 percent of all spam sent today comes from botnets, despite several recent shut-downs. Spam accounted for 90.4 percent of all e-mail sent in the month of June-this was roughly unchanged since May. Botnets, however, sent about 83.2 percent of that spam.