Might be worth taking a look a the nlog.config file if you can’t limit this within UiPath and changing where logs are stored to a secure environment.
Otherwise…
When you say sensitive values, if you’ve got credentials etc. you should be using the get credentials or similar activities.
If you mean, membership numbers, phone numbers etc. then this should be discussed with your information security or risk and governance teams, as i dont think you can disable verbose logging. “Private” might be the way to go.