Which options are security principles based on the AWS Well-Architected Framework?

The principle of preparing for security events aligns with the AWS Well-Architected Framework, particularly within the Security Pillar. This principle emphasizes the need for organizations to have reactive strategies and preparedness in place to handle potential security incidents effectively. This includes having an incident response plan, ensuring that personnel are trained to respond to security threats, and maintaining a clear understanding of the security controls in place.

Being prepared involves regularly testing these plans through simulations and continuously updating them based on evolving threats and lessons learned from past incidents. This proactive approach is crucial for minimizing the impact of security events, hence reinforcing the importance of preparedness in securing AWS environments.

The other options, while they may relate to security in various contexts, do not directly align with the core principles highlighted in the AWS Well-Architected Framework's Security Pillar. For instance, enforcing vendor compliance is more of a compliance-related aspect, protecting points of failure pertains to system design rather than a security principle, and monitoring employee activity is specific but not a foundational aspect of AWS's outlined security practices.