RE: readnotify.com

Would not the easiest way to block the notification be to block access
to that URL/Address entirely on your gateway device (router, proxy,
etc...)? Blocking access to that address should block the accessing of
the image, therefore no access to the image would be logged on their
server.

Dan Denton
Information Technology Manager, CCNA
Pay-LESS Office Products



-----Original Message-----
From: Larry Offley [mailto:lucullus@xxxxxxxxx]
Sent: Wednesday, January 25, 2006 2:43 AM
To: hfebelingjr@xxxxxxxxx
Cc: security-basics@xxxxxxxxxxxxxxxxx
Subject: Re: readnotify.com


Yes and no. First we need to know how they know you read your e-mail. I
common way is the use of a "Web bug" these usually consist of a small
1x1 image file usually the same color as the back ground of a html
e-mail message or transparent. This method is easy and works on all
platforms (Linux/mac/pc). If you use a mail client that doesn't auto
download referenced images, then the the server hosting the image can't
tell you have read the message. Read the provided wiki link for more on
the subject.

Wiki on web bugs http://en.wikipedia.org/wiki/Webbug

Larry Offley

Ebeling, Jr., Herman Frederick wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Does anyone know anything about a web site called
> (http://www.readnotify.com/)? If so does anyone know of anyway to
> prevent it from sending it's return receipts to the sender?
>
> Herman
> Live Long and Prosper
> ___________________ _-_
> \==============_=_/ ____.---'---`---.____
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> \ \ / / `-_-'
> __,--`.`-'..'-_
> /____ ||-
> `--.____,-'
>
> -----BEGIN PGP SIGNATURE-----
> Version: PGP 8.0.3
>
> iQA/AwUBQ9Vl5B/i52nbE9vTEQI9XgCg3Nhg6Fvo0Eb8SNifD9BPzKSM4csAnivR
> LPCQGjXz9OhMxTZBZHXwZBQM
> =IEYv
> -----END PGP SIGNATURE-----
>
> ----------------------------------------------------------------------
> -----
> EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
> The Norwich University program offers unparalleled Infosec management
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------------------------------------------------------------------------
---
EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
The Norwich University program offers unparalleled Infosec management
education and the case study affords you unmatched consulting
experience.
Tailor your education to your own professional goals with degree
customizations including Emergency Management, Business Continuity
Planning,
Computer Emergency Response Teams, and Digital Investigations.

http://www.msia.norwich.edu/secfocus
------------------------------------------------------------------------
---


---------------------------------------------------------------------------
EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
The Norwich University program offers unparalleled Infosec management
education and the case study affords you unmatched consulting experience.
Tailor your education to your own professional goals with degree
customizations including Emergency Management, Business Continuity Planning,
Computer Emergency Response Teams, and Digital Investigations.

http://www.msia.norwich.edu/secfocus
---------------------------------------------------------------------------

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