Criminals have been mass-mailing emails that purport to be from Marks & Spencer Bank offering tempting savings bonds paying more than 7% interest.
If you click on the messages you go through to the website ms-fixedrates.com.
One savvy M&S customer who has one of their credit cards spotted that this was a clone M&S site and tried to alert the bank, assuming it would use its clout to get the site taken down and post a warning on the real website.