Let's say the application is storing user's phone number so it can send SMS notifications to the user. Encrypt it all you want, but when it is time to send the SMS you will need the phone number in plaintext so you can pass it to the SMS gateway.
Let's say the application is storing user's phone number so it can send SMS notifications to the user. Encrypt it all you want, but when it is time to send the SMS you will need the phone number in plaintext so you can pass it to the SMS gateway.