LD SoftwareBespoke Software, Web Design, Security Consultants and Host Services.


You have been warned!
We have caught 5852 shameful hackers.


Paypal Referral
Sign up for PayPal and start accepting credit card payments instantly.

Link Exchange
Join our free link exchange

Click Here
Phone Home

Online Advertising

Phone Home

From Wikipedia the free encyclopedia, by MultiMedia

Back | Home | Up | Next

Phoning home is usually surreptitious communication between applications or hardware installed at end-user sites and their manufacturers or developers. This could be for purposes of access control, such as transmitting an authorisation key. It could also be for marketing purposes, such as the "Sony Rootkit", which transmits a hash of the currently playing CD back to Sony, or a digital video recorder (DVR) reporting on viewing habits.

The traffic could be encrypted, so that the end-user doesn't know what data is being transmitted.

In one sense, every time you visit a web page or any other kind of remote server it is "phoning home" since the IP address of your own computer is sent to the web server (an unavoidable process if a reply is required). The use of graphics on a web page establishes further connections, possibly to different sites, which can also be used for tracking, as in the case of "web beacons". Some other file types can do the same kind of (essentially anonymous) tracking by setting up a connection which is intended to be logged, e.g. PDF though in the latest version of Adobe Reader the user is notified [1]

The phrase probably originates from the 1982 film "E.T. the Extra-Terrestrial"

See also


  1. http://www.adobe.com/support/techdocs/332208.html "Phone home" notification enhancements, meaning that when a PDF document attempts to contact an external server for any reason, the end user will be notified via a dialogue box that the author of the file is auditing usage of the file, and be offered the option of continuing."

External links

Home | Up | Keystroke logging | AntiVirus Gold | Bonzi Buddy | C2.LOP | CoolWebSearch | HuntBar | Internet Optimizer | PSGuard | SpyAxe | SpyTrooper | WorldAntiSpy | XXXDial | Zango Messenger | Phone Home | Claria Corporation | Cydoor | New.net

Online Advertising, made by MultiMedia | Free content and software

This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.

You can syndicate our News with backend.php And our Forums with rss.php
You can also access our feeds via Feedburner Site News and LD Software Forums
© 2009 ld-software.co.uk All Rights Reserved.
PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.
Page Generation: 0.47 Seconds