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25

This is a proxy authentication pop up! and it's most likely a proxy related attack. When you connect to the internet through a proxy, you'll be asked to enter username and password if the proxy requires an authentication. For example: Note that the whole text The server http:// ... The server says is editable, and you can change it in the proxy server ...


20

This is a dialog for HTTP basic access authentication which is not what Facebook uses for authentication. This means that this dialog is not from Facebook itself. My guess is that facebook.com is filtered by your "strong proxy to avoid social networking sites" but that access to this site is allowed for some authorized users. Thus what you see here is ...



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