Probably the most common scam: You receive an email asking to review your bank details for some reason such as a 'Security review of all accounts'. IGNORE IT!
No reputable bank or other financial organisation will send you an email with a 'click here' type link to correct / update / review / confirm your account details. If you are not convinced it is fake then phone your bank to check or check your account online by your normal method - NEVER click links in such emails.
Some typical emails: (From.... Subject)