What is Insecure Content?

http://www.lockergnome.com/net/2011/11/30/how-to-disable-this-page-has-insecure-content-warning-in-chrome/

We're always our own worst critics, but it's sad when even a Web browser starts spouting off about its own insecurities to anyone within eyeshot. Kelly Clay started noticing that every webpage she'd try to access from her Google Chrome browser — even Google's own pages — would trigger an annoying and intrusive "This page has insecure content" message to pop up. Here, she goes over why this happens and how she was able to disable the warning and finally get some respite from this nuisance.

You can catch the entire TLDR episode here:
http://www.youtube.com/watch?v=wseuDFo-4Cs

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