Clients of the Dutch ING bank should watch out for emails about blocked TAN codes.
TAN stands for Transaction authentication number and is used by online banking services as a form of password to confirm financial transactions. Combined with other personal details such as user names and passwords, these SMS-delivered TAN codes can be used by criminals to empty bank accounts. It’s important not to respond to emails about TAN codes, supposedly sent by ING bank, which are currently doing the rounds.
Here’s an example:
You can safely delete this email from ‘ING’. If you don’t trust a particular email or are certain it is fake, please forward it to firstname.lastname@example.org before deleting it from your inbox.