Approximately 3,900 Beth Israel Deaconess Medical Center patients will be getting letters alerting them that some of their personal health information may have been breached after a physican ’s personal laptop computer was stolen from a hospital office . The theft occurred May 22 , hospital officials said Friday , and the stolen laptop , which contained a tracking device , has not been recovered . “ There were no Social Security numbers , there were no complete medical records , and there were no medication lists ” on the laptop , said Dr. John Halamka , Beth Israel Deaconess ’s chief information officer . “ There was also no financial data , and nothing that would be used from an identity theft perspective . ” Beth Israel Deaconess routinely protects information on company - issued computers by encrypting the material with software that makes it difficult to decipher , but in this case the stolen laptop was the physician ’s personal device that was used for some office work . ;