Enhanced Security: By adding a unique salt to each email or password, it becomes significantly more difficult for attackers to crack the data, even if they gain access to the hashed values. Preventing Hash Collisions: Salting helps ensure that even if two users have the same password or email address, their hashed values will differ, making it harder for attackers to leverage commonalities. Data Integrity: Salt helps maintain the integrity and confidentiality of email lists, ensuring that subscriber information remains private and secure.