Flashback Trojan horse has infected between 270,000 and 600,000 Macs. Experts say Apple needs to look to Microsoft when it comes to handling OS security breaches. Apple has mocked Microsoft for its track record in dealing with Windows malware, viruses, and weekly patches. Microsoft regularly schedules the rollout of security fixes on Patch Tuesday, the second Tuesday of each month. Apple still has some work to do in terms of its reputation for security, Macworld.com’s sister publication Macworld says.”]