Bill, do you use MS Exchange, and if so, what method of grey
listing do you use?
Tom Milliner, CPA, MCSE
2404 Summer Place Dr.
Irving, TX 75062
(241) 540-2741
tom.milliner@verizon.net
-----Original Message-----
From: Bill Borton [mailto:bborton@conwin.com]
Sent: Thursday, January 26, 2006 10:46 AM
To: incidents@securityfocus.com
Subject: Re: Decrease in Threats?
Hi there,
Your mention of fewer viruses but not spam made me think this might be worth
mentioning:
One of my mail servers that was getting 15,000 - 20,000 inbound infected
messages a month was also getting pounded by spam.
I an attempt to mitigate the spam I implemented "Greylisting".
It's working very well for that site. I don't have hard numbers available
at the moment, but I guesstimate that it took spam down by about %90.
The thing is, it also blocked the majority of inbound infected messages as
well. It went from tens of thousands to hundreds.
It makes perfect sense, but it definitely caused me a double take when I
first looked at it...
-Bill
On Wed, 25 Jan 2006 14:55:09 -0500
"Rohny Jotton" <rohnyjotton@hotmail.com> wrote:
In the last 30 days, I have experienced a extraordinary decrease in
email threats being stopped at the edge and also being seen on our
quarantine server. My first thought was something got in and disabled
our security services, but upon investigation that is not the case. It
looks like the quantity has indeed dropped, and I am trying to confirm
it (only virus's, worms, etc.; not spam).
I've been trying to find any trending of threats seen worldwide, and
the only one I have found is at f-secure. The chart seems to support
what I'm seeing but I'm curious if others are seeing a decrease also.
If indeed the threats are dropping off, is it due to the efforts
undertaken to mitigate the WMF flaw?
Also if anyone knows of other sites that show historic trends, I'd
appreciate being given the link. I see most antivirus sites will only
give percentage breakdowns and not quantities seen.
Thanks You
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