The difficulties that insider threats present to healthcare Electronic Health Records (EHR) systems are examined in this research, with particular attention to Kerala, India. Insider threats pose serious hazards to the security and integrity of patient data since they come from authorized persons including administrators, IT staff, and clinicians. While exterior intrusions have received a lot of attention, insider breaches tend to go unreported yet can have serious repercussions, such as financial losses, medical blunders, and data theft. This study looks into the types, prevalence, and effects of insider threats in EHR systems in an effort to pinpoint the main causes of these breaches. The study draws attention to the flaws of EHR systems, including unreliable access controls, a lack of training, and organizational shortcomings. The study investigates the efficacy of current security measures in reducing insider threats by conducting a thorough survey of Kerala's healthcare professionals. The results emphasize how important it is to have more robust security frameworks that include administrative regulations, behavioral treatments, and technical protections. This dissertation offers practical suggestions for healthcare institutions looking to improve the security of their EHRs, with an emphasis on improved monitoring, user access control, and ongoing employee education. The ultimate goal of this research is to help create stronger plans for protecting private health data and guaranteeing the privacy and accuracy of EHR systems in the medical field.