US Patent 8423471 Protected document elements

In some embodiments, techniques for computer security comprise displaying an electronic document, detecting a request to traverse a link, such as a hyperlink or a form submission, wherein the link is associated with an element of the document, evaluating an attribute, wherein the attribute is associated with the element of the document, and determining whether to perform the action based on the evaluation. Applications of these techniques include mitigating the effect of an attempt to modify web pages for fraudulent purposes, such as by a “phishing” attack incorporating malicious scripting.