Restricting access to data during cloud migration is a critical step for businesses seeking to transmit information securely. You should take several steps to ensure that only the intended users have access to the data when necessary. These steps are detailed as follows:
Implement and execute user-level authentication and authorization rules.
Establish a reliable two-factor authentication process.
Use built-in security policies from your cloud service provider.
Encrypt all data before transmission.
Periodically audit who has access during migration.
Regularly scan vulnerabilities on systems with sensitive information during migration.
Remove any credentials or access keys associated with the dismissed employees.