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Credit card nanny detects fraudulent - or incompetent - websites that capture sensitive details (credit card numbers) and risk exposure of such details in clear text, often despite being behind SSL encrypted servers.
About this Add-on
This extension detects such forms and warns you of the possibility that sensitive information may be exposed in clear-text, putting you and your sensitive data at risk.
You can test the extension by browsing to https://cc-nanny.appspot.com/test-secure-page - a dummy credit card form that uses a form emailer script - a very common pattern used on an alarmingly large number of websites.
Please visit http://sites.google.com/site/creditcardnanny for information on how to submit bugs, or contribute to this add-on in any way.