Of course nothing is perfect. While the vast majority of users don't realize they have a virus until it destroyed enough of Windows to justify a full reformat, some actually can point a virus without an antivirus warning. Either knowledgeable users or experienced people in security can spot certain symptoms of infections and some strange behaviors. And the more viruses spread, so does the voice and knowledge over them, so it becomes over time quite know and eventually blacklisted by antiviruses.
I'm not really surprised. They've said the obvious.

Quote: Originally Posted by
x BlueRobot
This may be off subject, but I don't understand, how Apple can claim that a Mac can never inherit a virus O.o Me and my friend (he has a Mac) came to the conclusion, that Apple is only able to claim this, as his Mac supposedly tells him if he is visiting a website which contains forms of spyware and malware.
I think it's a fake claim. Both Linux and Mac users are proud of being virus-immune, but that's really a false sense of security. While it's true that Windows is immensely more insecure and vulnerable than more serious OSs, it's also true that most virus writers specifically target Windows, since it's used by the majority and therefore those viruses have a greater chance of spreading. And since viruses are programs after all, they run in their target OS only, so Windows viruses cannot run on Mac like any other program. Viruses specifically targeting Mac will have no effect on Windows too. Reality is, if a virus request administrator permission, and the user writes his root/admin/sa/whatever password, it's game over, regardless of OS.
Just as a reminder, give your friend this link
Virus hits half a million Macs: How to protect yourself against malware | Fox News