Adopting a platform-as-a-service (PaaS) delivery model dramatically boosts an organizations ability to create services and make them available to clients and stakeholders. With PaaS, software patching and other vulnerability-related processes are delegated to the cloud provider. The vast majority of attacks on these systems exploit vulnerabilities for which patches are publicly available, so a good patch management strategy is the first line of defense against these attacks. A cloud solution’s ability to quickly respond to a changed workload and scale outward with demand creates a natural protection against some DDoS attacks.”]
Source: https://securityintelligence.com/adopting-paas-tips-and-best-practices-for-cloud-transformation/