Whatever you do, under no circumstances should you talk to these people if they phone you. They sound very plausible and convincing, but they are evil people who 'earn' a living by demanding 'ransom' for the return of lost files. Please advise all your contacts and share it with family and friends. My address book has been lost, so if you've contacted me recently for a puppy, please do so again. The importance of dental hygiene in your yorkie cannot be stressed enough.