Ensuring Cyber Security in Cloud Migrations Safeguarding Legacy Data for Highly Regulated Industries

Abstract

This paper investigates more advanced ways to keep data safe during cloud migrations, focusing on keeping old data safe in industries with many rules. Because private data is at great risk, the research uses encryption for both data that is at rest and data that is in transit to stop breaches and unauthorized access. This paper uses the AWS Key Management Service (KMS) to make sure that encryption keys are managed well. This automates encryption processes and gives a central point of control. It is imperative to do this to stay in line with rules like GDPR, HIPAA, and PCI-DSS. This essay looks at the different encryption methods that are used and considers important issues such as encryption overhead, scale, and legal compliance. The results show that using strong encryption along with AWS KMS makes legacy data safer while it's being migrated, protecting its privacy and integrity while also meeting strict legal requirements. This method provides a safe framework for moving to the cloud in very critical areas.