AWS has following physical and network security build in:

• Physical access is strictly controlled both at the perimeter and at building ingress points by professional security staff utilizing video surveillance, intrusion detection systems, and other electronic means
• Fire Detection and Suppression Automatic fire detection and suppression equipment has been installed to reduce risk.
• Power The data center electrical power systems are designed to be fully redundant and maintainable without impact to operations, 24 hours a day, and seven days a week.
• Climate and Temperature Climate control.
• Network Security The AWS network has been architected to permit you to select the level of security and resiliency appropriate for your workload.
• Network Monitoring and Protection AWS utilizes a wide variety of automated monitoring systems to provide a high level of service performance and availability.
• Distributed Denial Of Service (DDoS) Attacks protection.
• Man in the Middle (MITM) Attacks protection.
• IP Spoofing protection.
• Port Scanning protection.