The Twilio Helper Library for Python provides a useful logging feature intended to help debug issues, but it may include personally identifiable information (PII) that can be unnecessary and create legal issues. To mask PII from log files, the library can be upgraded to the most recent version, or a custom logging filter can be added to remove specific patterns from the logs. The latter approach allows for customization options such as replacing phone numbers with placeholders. By using these methods, developers can better protect their users' privacy and ensure compliance with privacy laws like GDPR.