Security Basics mailing list archives

Re: readnotify.com


From: Larry Offley <lucullus () telus net>
Date: Wed, 25 Jan 2006 00:42:53 -0800

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:
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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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---------------------------------------------------------------------------
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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