Phishing emails usually include a phishing Uniform Resource Identifier (URI) that the user is supposed to follow to key in some sensitive information on a phishing site. Phishing emails will usually contain instructions requiring users to reconfirm sensitive information such as online banking details or credit card information. A phishing email is most likely crafted to resemble an official email originating from a reputable business, for example a bank. Phishing is an email based social engineering technique aimed at having email users disclose personal details to spammers. Blocks emails that contain links in the message body pointing to known phishing sites or if they contain typical phishing keywords.