CompTIA CySA+ CS0-003 Practice Question
A financial institution has reported a significant discrepancy in its transaction records, indicating possible unauthorized modifications. Which control should be prioritized to verify and safeguard the integrity of these records?
Encrypt all transaction data to prevent unauthorized access.
Establish strict access control lists for all financial records.
Implement cryptographic hash functions to compare current records against trusted hash values.
Perform regular backups of the transaction records.