[영문]The amount of information stored electronically has grown exponentially resulting in increased concern for privacy and security of information. The healthcare industry has been put to the test with the federally mandated Health Insurance Portability and Accountability Act (HIPAA) of 1996. To assess the compliance status of HIPAA security standards, a random sample of 1,000 US hospitals was surveyed in January 2004, yielding a return rate of 29%. One year later a follow-up survey was sent to all previous respondents, with 50% replying. HIPAA officers?perceptions of security compliance in 2004 and 2005 are compared. The security standards achieving the highest level of compliance (both in 2004 and 2005) were ?obtaining required business associate agreements?and ?physical safeguards to limit access to electronic information systems.? Respondents indicated least compliance both years in ?performing periodic evaluation of security practices governed by the Security Rule