Messages asking for personal information

Some spammers send fraudulent mass-messages designed to collect personal information, called 'spoofing' or 'password phishing.'Here are a few ways you might recognize these messages:They ask you to provide your username and password or other personal information (e.g. Social Security number, bank account number, PIN number, credit card number, mother's maiden name, or birthday). Even if they appear to be from a legitimate source, or contain an official-looking webpage, be careful. Spammers often ask for this information in an attempt to steal your Gmail address, your money, your credit, or your identity.

You might see a warning from Gmail when you open one of these messages. These phishing alerts operate automatically, much like spam filtering. Gmail's spam filters automatically divert messages that are suspected of being unwanted messages into 'Spam'. Similarly, Gmail's phishing alerts automatically display warnings with messages we suspect are phishing attacks so you know to exercise caution before providing any personal information.

You should always be wary of any message that asks for your personal information, or messages that refer you to a webpage asking for personal information. One thing to be sure of: Google or Gmail will never ask you to provide this information in an email; if the message asking for it claims to be from us, don't believe it.
Some spammers send fraudulent mass-messages designed to collect personal information, called 'spoofing' or 'password phishing.'
Here are a few ways you might recognize these messages:
They ask you to provide your username and password or other personal information (e.g. Social Security number, bank account number, PIN number, credit card number, mother's maiden name, or birthday). Even if they appear to be from a legitimate source, or contain an official-looking webpage, be careful. Spammers often ask for this information in an attempt to steal your Gmail address, your money, your credit, or your identity.
You might see a warning from Gmail when you open one of these messages. These phishing alerts operate automatically, much like spam filtering. Gmail's spam filters automatically divert messages that are suspected of being unwanted messages into 'Spam'. Similarly, Gmail's phishing alerts automatically display warnings with messages we suspect are phishing attacks so you know to exercise caution before providing any personal information.
You should always be wary of any message that asks for your personal information, or messages that refer you to a webpage asking for personal information. One thing to be sure of: Google or Gmail will never ask you to provide this information in an email; if the message asking for it claims to be from us, don't believe it.
Source: Google help