|
Posted by Noel Paton on February 1, 2006, 5:21 pm
If you were Registered and logged in, you could reply and use other advanced thread options > Noel Paton wrote:
>>> Noel Paton wrote:
>>>>> I have a problem.When i turn off outgoing e-mail scanning norton
>>>>> tells me it reduces protection of my PC.I can choose for how long
>>>>> do I want to turn it off.Whatever I choose(15min,...,permanently)
>>>>> it doesn't take effect.I click on OK but when I open options again
>>>>> outgoing e-mail scanning isn't turned off.I want to make it
>>>>> permanently because scanning of an e-mail takes more than 15
>>>>> minutes. Who can help me?
>>>>
>>>> How can turning off OUTgoing email scanning reduce the protection of
>>>> YOUR PC??
>>>> Symantec just like to ensure that they have free advertising in your
>>>> emails!
>>>
>>> Noel...how does this work. I have sent myself testing e-mails just
>>> recently (and many times in the past) and I have never seen any
>>> advertising in the e-mail I receive. I am using NAV 2004. I guess
>>> I should shut if off anyway, along with the incoming like you say,
>>> although I always thought it was a little extra safe to check the
>>> incoming (even though autoprotect will pick anything up like you
>>> said)...Pete
>>
>>
>>
>> WRT incoming mail - this can lead to a false sense of security, as
>> the email is scanned on delivery - and if the user turns off
>> updating on the AV, then if the file was not recognised on download,
>> then it ain't never gonna get recognised the AV hasn't been updated
>> to include the defs for the particular malware the email contained
>> ("I scanned it on download, and it was OK - why did my machine wipe
>> all my files?")! (remember that NAV is installed in time-limited form
>> to what amounts to the majority of new PC's!!)
>> NAV may not be one of the companies that use the opportunity of
>> scanning outgoing mail to advertise (probably on the basis that they
>> think they have a total grip on the market - which hopefully will
>> change!) - but any outgoing email from a PC can be (and in some AV's
>> is) automatically 'signed' as clean before it leaves the sender's
>> machine. There are a number of problems with this approach
>> 1) some vendors (including Grisoft) attach the 'this email is virus
>> free' data in such a way that the form of the email is significantly
>> change - so If I was to send you a plain-text email, it would in fact
>> arrive as an HTML email!
>> 2) the assurance of being 'virus free' is worth exactly the paper it
>> is written on - Nothing! - since there can be any number of steps
>> between emission of the email from the sender's PC, and receipt at
>> the target PC. 3) receivers of emails 'signed' by AV companies tend
>> to take less precautions with the received email than they would do
>> with the same email received from a known source, but an unknown
>> attachment - and the 'signature' itself could potentially be part of
>> a virus!
>> I could go on - but I hope that you get the gist of my argument?
>>
>> ANY virus scan of anything is dependent on two things - the
>> cleverness of the scanner, and the time at which it's scanned.
>> The best time to scan ANYTHING is the second before you use it - with
>> definitions generated and downloaded immediately prior (leaving aside
>> the 'efficiency' of the scanner itself!)
>
> Thanks Noel...acknowledged...Pete
YW, Pete - I think I got this one right! :)
--
Noel Paton (MS-MVP 2002-2006, Windows)
Nil Carborundum Illegitemi
http://www.crashfixpc.com/millsrpch.htm
http://tinyurl.com/6oztj
Please read http://dts-l.org/goodpost.htm on how to post messages to NG's
|