SmartScreen Filter is designed to help warn you about unsafe websites that are impersonating trusted websites (phishing) or contain threats to your computer. If you opt in to SmartScreen Filter, it first checks the address of the website you are visiting against a list of high traffic website addresses stored on your computer that are believed by Microsoft to be legitimate. Addresses that are not on the local list and the addresses of files you are downloading will be sent to Microsoft and checked against a frequently updated list of websites and downloads that have been reported to Microsoft as unsafe or suspicious. You may also choose to use SmartScreen Filter manually to verify individual sites with Microsoft.
When you use SmartScreen Filter to check websites automatically or manually, the address of the website you are visiting will be sent to Microsoft, together with standard computer information and the SmartScreen Filter version number. To help protect your privacy, the information sent to Microsoft is encrypted.
Information that may be associated with the address, such as search terms or data you entered in forms might be included. For example, if you visited the Microsoft.com search web site at http://search.microsoft.com and entered "Seattle" as the search term, the full address http://search.microsoft.com/results.aspx?q=Seattle&qsc0=0&FORM=QBMH1&mkt=en-US will be sent. Address strings might unintentionally contain personal information, but this information, like the other information sent, is not used to identify, contact or target advertising to you. In addition, Microsoft filters address strings to try to remove personal information where possible.
From time-to-time, information about your usage of SmartScreen Filter will also be sent to Microsoft such as the time and total number of websites browsed since an address was sent to Microsoft for analysis. Some information about files that you download from the web such as name and file path may also be sent to Microsoft. Some website addresses that are sent to Microsoft may be stored along with additional information including web browser version, operating system version, SmartScreen Filter version, the browser language, and information about whether Compatibility View was enabled for the website. A unique identifier generated by Internet Explorer is also sent. The unique identifier is a randomly generated number that does not contain any personal information and is not used to identify you. This information, along with the information described above, is only used to analyze performance and improve the quality of our products and services.
SmartScreen Filter can be turned on and off from the Internet Explorer Safety menu. For example, to turn on automatic checking of all websites:
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In Internet Explorer, click the Safety button, and then click SmartScreen Filter.
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Click Turn On SmartScreen Filter.
If you believe you have encountered an unsafe website, you can report it to Microsoft by clicking the Safety button, and then clicking SmartScreen Filter followed by Report Unsafe Website. When you report an unsafe website, some information will be sent to Microsoft including the address of the site you are reporting, and the usage information described above.