- Segment Your Lists: Minimize risk by segmenting your subscriber lists. This way, a breach affects only a portion, not the entire database. - Use Secure APIs: If integrating with third-party services, ensure that they use secure APIs to prevent unauthorized access. - Regular Backups: Keep regular backups of your subscriber data to prevent loss in case of a breach or accidental deletion. - Data Anonymization: Where possible, anonymize data to reduce the impact of any potential breach.