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Facebook uses bgsound to see if you opened an e-mail
Topic Started: Mar 6 2012, 08:29 PM (180 Views)
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Facebook uses bgsound to see if you opened an e-mail
March 5, 2012 7:31pm PST

Facebook is using a new implementation of an old trick to see if you opened an e-mail that the company sends you. Furthermore, Facebook isn't the only one to do this.

Here’s an interesting conversation I stumbled on over at Google+. Carl Chatfield starts off with a casual observation: Fun fact, facebook knows when you read their emails (assuming you have html enabled and show images). This is at the bottom of every email that facebook sends:

<span style=3D""><img src=3D"http://www.facebook.com/email_open_log_pic.php?mid=3D51178b2G56e57c6dG1f415bcG0" style=3D"border:0;width:1px;height:1px;"/><bgsound src=3D"http://www.facebook.com/email_open_log_pic.php?mid=3D51178b2G56e57c6dG1f415bcG0&s=3Da" volume=3D"-10000"/></span>

I’m also not sure whether or not gmail disables bgsound by default, which facebook also attempts to use to track you. Charles Ma comments saying Facebook isn’t doing anything new:

A lot of companies do this, anyone using www.campaignmonitor.com or www.sendgrid.com. Not saying it’s right or wrong, just pointing out that pretty much anyone who knows anything about email marketing is doing it now.


http://www.zdnet.com/blog/facebook/facebook-uses-bgsound-to-see-if-you-opened-an-e-mail/10003
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