80 percent of CIOs say they are concerned about the security risks connected with SSH keys. 68 percent recognize managing SSH will become more difficult as organizations move to modern, cloud-native environments. A large number of duplicate private keys stems from ineffective or nonexistent enforcement of policies governing the duplication of private keys and limitations on where they are stored. The only way to address these risks is to put in place a comprehensive SSH machine identity management solution that provides continuous visibility and leverages automation to enforce policies.
Source: https://www.helpnetsecurity.com/2021/02/05/security-risks-ssh-machine-identities/