The SEC_CASE_SENSITIVE_LOGON information determines whether or not case-sensitivity is required for passwords during login. Note: This parameter has been deprecated in 12.1 and higher versions. Rationale: Oracle database password case-sensitivity increases the pool of characters that can be chosen for the passwords, making brute-force password attacks quite difficult.
Solution
To remediate this setting, execute the following SQL statement. ALTER SYSTEM SET SEC_CASE_SENSITIVE_LOGON = TRUE SCOPE = SPFILE;