Answers:
I'm going to assume you in fact expect 'virus' and not 'worm', 'trojan' or 'root-kit' and are not simply using virus to anticipate any malware. My answer would change if you have something more nonspecific surrounded by mind.
So - focusing on virus. The Mac operating system is Unix base. There is a separation between user space and system space. Nothing you do as a user can affect the system. A user downloading a virus cannot spread it to the system files.
The certainty that Macs (and Linux machines for that matter}are much smaller number adjectives on the desktop than Windows have nil to do beside it. That charm is perpetuate by inhabitants who hold little hypothesis why Windows is a vehicle for spreading virus and, within consequence, enjoy unquestionably no notion why a Mac or Linux system is in safe hands from virus infections by design.
Incidentally, a virus writer who could crack the payment of a Mac would gain immense kudos. Which is in itself a strong argument against the 'Macs are few in number' brigade'.
Since more family use pcs than use macs, in that are smaller amount virus programs written for macs.
Less family use them so smaller amount inhabitants are interested in writing virus for them.
For me to answer this you would hold to agree that most of the world today are using PCs.
If so and you be a virus initiator and needed your virus to spread to the maximum amount of general public would you release it on the Mac near smaller number users or the PC where on earth the majority of the world is?
Its palpable what most of them choose.
(Its not that they're smaller amount adjectives its that theyre targeted less)
The Apple OS is a adaptation of linux. Linux/Unix isn't typically targetted by hackers. Since Microsoft 'owns' pretty much adjectives of the PCs and in a minute various various corporate computers, nearby is a far larger number of them for hackers to attack.
Good luck!
one simple foundation if you are wanting to effect more culture hrite i virus that attack the system more society use. since more race use notebook's consequently macs, in that are alot more virus also alot more businesses use pcs and so alot more hackers target them.
I would reflect on it have to do next to souk share. There are masses more PCs around than Macs, so if you're a virus writer you're going to direct your vigour towards the largest pool available. Additionally, near are possible more virus writers beside PC experience than those next to Mac experience. If Apple's flea market share increases, you'll see more Mac virus. This will also surface if Apple get too cocky within their media hype in the order of the "virus resistance" of their computers. Virus writing is adjectives in the region of the flout, so Apple should purloin support not to poke the bee hive too thorny.