Spammers used OpenAI to generate messages that were unique to each recipient, allowing them to bypass spam-detection filters and blast unwanted messages to more than 80,000 websites in four months, ...

Assembled by a Trojan called SpamThru, the new botnets are tougher to bring down, says Paul Wood, senior analyst with MessageLabs, a message security and filtering service. "The advent of Trojans like ...