After the official denials in recent days, Apple has had to admit the presence of virus in the system, which now becomes more like an untouchable time but assumes a more normal and less alien. The Cupertino company has in fact published a guide that allows users to prevent and combat such threats, which until now had not yet seen such a massive dose on the Mac is hoped that this release can reach more people and the latter strictly apply the advice given by the manufacturer to prevent any kind of problem, as far as possible.