In article <barmar-D29899.21250118072008@newsgroups.comcast.net>, Barry Margolin <barmar@alum.mit.edu> wrote:
> In article <mirsky-F8B63E.17573018072008@news.verizon.net>, > Mirsky <mirsky@mirsky.com> wrote: > > > HI. I own a 24" Imac running OS 10.5.4. > > > > I access the internet via DSL from Verizon, > > > > I don't use a router, nor have I activated a Firewall. > > > > My question is: Should I activate a Firewall? Without one, is my Mac at > > risk of being infiltrated by others on the internet? If I should turn on > > a Firewall can I do it with via one of the System Preferences? > > Have you enabled any of the items in the Sharing preferences? If not, > you're pretty safe. Mac OS X doesn't have any dangerous network > services enabled by default, so there aren't any entrypoints for the > hackers.
And you can turn on the firewall using the "Security" system preference panel.
