Does the system mask sensitive information from log files like credit card numbers

Yes, the system has option to mask information from log files

Logs data can be masked based on Java regular expressions. (https://docs.oracle.com/javase/tutorial/essential/regex/index.html)

Example -  mask credit card number from log files or mask only the password from connection URL.

String like: My master card number number "4444333322221111" will be masked to "My master card number number "****************"

String like: "nigel:pass@host.com" will be masked to "nigel:******@host.com"