Don't Be a Victim
Don't let spammers get the best of you. Don't fall for their tricks. If someone came up to you on the street and offered you a million dollars if you simply gave them $10,000, would you do it?
Be on the lookout for urgent or time sensitive requests. Truly sensitive financial transactions should not be handled through e-mail.
Also, friendly or casual messages (such as "Re: meeting yesterday" or "the information you requested") can be designed to entice you. Did you have a meeting yesterday? Have you recently requested information via e-mail? Your gut reaction is usually correct. Be careful of false subject lines.