A Devon doctors ’ surgery that attempted to improve its service for patients has seen its efforts backfire after a newsletter was sent out with patients ’ email addresses on display . The security breach affected around 1,000 patients of Pembroke House Surgery in Paignton on Tuesday afternoon . Following the administrative error , the surgery wrote to patients to apologise for any concern or inconvenience caused and to reassure them that no other details besides their email addresses had been divulged . ;