The email address:
Here's the email address of the sender:"firstname.lastname@example.org" Have you ever seen a business email address that begins with "mr"? I suppose it's possible, but I'd mark it with a red flag and be suspicious. And, if this is an official email from HSBC where's the logo and where's the official signature with the Bank address and contact information?
"Attention" Really? I've been called a lot of things in my day, but "Attention" hasn't been one of them.