The charity's CEO sends email to its supporters after data was downloaded by a third party.
A hospital trust says it is not aware of any misuse of its information.
Beacon CRM stores data including names, addresses, emails, and phone numbers.
People are warned to watch out for unexpected emails, calls or texts asking for personal information.
The Information Commissioner's Office orders the force to urgently step up its data protection.
Nuneaton and Bedworth Borough Council apologises over the matter.
The Commons' Defence Committee says in a report that the MoD used secrecy as a "shield" against proper expertise.
It is believed to be the first time that MI5 has been directed to pay compensation to a journalist.
John Adams' personal data was leaked when his healthcare provider was hacked.
