In his blog, Lilly said: "What Apple is doing now with their Apple Software Update on Windows is wrong. Because it means that an update isn't just an update, but is maybe something more. It borders on malware distribution practices."
Apple has been offering Safari 3.1 to Windows machines that don't have the browser installed as part of its Apple Software Update - the utility which is packaged with iTunes and QuickTime for Windows XP and Vista..
Lilly added: "It undermines the trust relationship great companies have with their customers and that is bad not just for Apple but for the security of the whole web."