This may not impact many folks reading this (or anyone at all) but its one of those "things that I signed up for a while back and forgot" deals, so just in case...
We are sending this email to inform you that we have detected an unauthorised access of some of our systems that may have affected your Multiplay account details.
Your Multiplay account does not store any payment details, and as far as we are aware there has been no access of your account information. Although all the passwords we store are encrypted, as an added security measure we recommend you change your Multiplay account password.
We also recommend you do the same on any external accounts where you use the same or a similar password.
Sincerely,
The Multiplay Team