More than half a million Macs are infected with the Flashback Trojan, a malware package designed to steal personal information, according to a Russian antivirus company.
The company — Dr. Web — originally reported today that 550,000 Macintosh computers were infected by the growing Mac botnet. But later in the day, Dr. Web malware analyst Sorokin Ivanannounced on Twitter that the number of Macs infected with Flashback had increased to 600,000, with 274 of those based in Cupertino, Calif.