Equifax

You have to be so wary of these things. This morning I got an e-mail asking if I'd like to see my credit score. I clicked on it out of interest and once I'd got past the name, address, DOB etc., it asked for my card details including the security number on the back.

Yer right....

I would be tempted to leave well alone, annsixty

I would ignore it.

At best, it's Equifax trying to sell you an alert service (when it's their fault that the data was hacked) and at worst it's a scam.
You can get a copy of all the data Equifax hold for £2 using their website or plenty of other sites such as Noddle have this information for free.

Equifax in the US was recently hacked in a major way, and many people in the UK are affected:

Equifax

You don't need to have been a direct user of their services to have been affected but it's likely that most of us are on their books via their service users e.g banks, building societies, store cards, etc

The problem is knowing if this is a genuine letter from them or a scam in itself.