This email with the subject "Unusual activity in your American Express account" was received in one of Scamdex's honeypot email accounts on Fri, 13 Feb 2015 10:59:28 -0800 and has been classified as a Generic Scam.
The sender was "American Express" <email@example.com>, although it may have been spoofed.
Dear Customer: We are writing to you because we need to speak with you regarding a security concern on your American Express. Our records indicate that you recently used your American Express card on February 10, 2015. For your security, new charges on the accounts listed above may be declined. If applicable, you should advise any Additional Card Member(s) on your account that their new charges may also be declined. To secure your account , please click log. Your prompt response regarding this matter is appreciated. Sincerely, American Express