How to encrypt the SMS of Samsung s2 1u?

Some SMS messages involve privacy. What can I do if I want to set encryption? You can refer to the following methods.

Step 1: Open the settings, click Security, and apply the lock. Step 2: Click "Open" to lock the screen password. After entering the password, swipe down to find the information and lock it. The third step is to return to the desktop click information, and you can see that it has been encrypted.

Some Android phone users want to know how to encrypt short messages, because short messages often involve important information such as bank transaction reminders or login verification codes, so short message encryption is particularly important.