Latest research in Security Monitoring for Virtual Machines in Cloud focuses on developing efficient and robust techniques to ensure the integrity, confidentiality, and availability of virtualized environments. Studies highlight architectures that monitor VM security health and provide unforgeable reports to customers using property-based attestation, as well as low-overhead kernel object monitoring methods that reduce performance impacts while protecting critical resources. Research also addresses co-residence attack mitigation through secure VM allocation strategies that balance security risks, workload distribution, and power consumption. Overall, these approaches aim to strengthen the security posture of cloud infrastructures by providing scalable, accurate, and efficient monitoring solutions for virtual machines.