here is another things about phone security, have a read it might give you a better understanding
13-08-2009 9:32 - edited 13-08-2009 9:33
Not using AV on a windows based PC is plain foolish as even the most careful of people can easily pick something up. Macs and linux based machines are generally ok.
AV on phones is pointless for those that just generally browse the internet. People who mess around with dodgy apps, or programs from less than legal origins are the most likely to ever encounter a symbian based virus/worm.
There have been a few pieces of malware out there but it's still very rare.
If you read my post you would see that I also mentioned linux.
It was a general warning comment to people as you did not specify what PC you had. When you say PC to the majority of people they instantly assume that it's winblows.
As per Psycomania's advise above, if your installing app's from legitimate sources such as the store or the developers website there should be no need for AV software on a Symbian device.
The E63 has been out for a while now and could have built up a bit of "crud" in it's files so I'd recomend getting rid of any AV software and re-installing/updating the firmware using Nokia Suite.
Make sure you've backed up first.
I really do not consider they advice you don't need an AV is you get stuff from stores valid.
There should be AV stuff there is no reason why you should be restricted to stores, and who is to say the store is legit anyway?
I have something tryingto dial out on my phone and I do not know what it is, that is an operating system fault IMO.
Untill a virus is discovered, how to the 'legit' sites know it is virus free?
And anyway someone could install a virus without you knowing and without AV you would *never* know