How to Encrypt your Android Phone (a Complete Guide)


Encrypt your Android Phone: The governments’ mass-surveillance program has allowed the ISP’s to keep data of its customers. It implies that all residents activities are continuously in monitoring stage. Due to this, netizens opted for implementing encryption on their devices to keep the data safe from unlawful tracking.(also see, How to Secure Android device?)

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How to Encrypt your Android Phone (a Complete Guide)

In 2014, Apple began encrypting iPhones by default, later in 2015, Android revealed the newest smartphone version, Marshmallow 6.0 with full disk end-to-end encryption. Furthermore, SD card encryption is also conceivable on Android devices. To strongly built-in encrypt the Android phones, this article will help you know how to encrypt your Android phone.

What Is Android Encryption?

Encryption disguises your data and makes it obscure for data snoopers and surveillance agencies. It protects all your information that you send or receive via an internet connection by transferring it through a secure and encrypted tunnel. When you encrypt android phone the whole phone information change into codes that can only be read by the authorised party who is going to get it.

However, a screen lock can only save your data if the phone gets stolen which means minimum protection, but the encrypted Android device secures your phone information from hackers and illegal surveillance.

Why do I Want to Encrypt My Phone?

Most of us these days keep a significant amount of private information on our smartphones – photos, contacts and addresses, passwords, financial details, emails, etc. Also, businesspeople often keep sensitive data on their phones that are vulnerable to corporate spying.

While a conventional lock-screen code will prevent casual vandalism of your data if you misplace your phone, to a resolute tech-savvy rival the lock-screen gives little real protection.

Encrypting your Android phone, on the other hand, makes it safe against almost all forms of attack, and will plausibly foil even the NSA.

Reasons Not to Encrypt Your Phone

Encryption/decryption takes processing power, and will, therefore, slow down your phone a little*. On faster phones, you are very unlikely to notice a distinction, but users of slower devices may want to rethink before encrypting them (this is likely the chief reason Google dismissed its requirement that all latest phones be encrypted by default.)


EEMC before

Before phone encryption

EMMC after

After phone encryption



As we can see, encrypting the phone caused a 9% performance hit. Such is the price of the security, but we have to state that we didn’t see a real distinction in practice.

Another problem is that it is not easy to reverse the encryption process should you change your mind. You can do it by factory restoring your device, but this will mean that you succumb all data stored on the phone.

How to Encrypt Android Phone

Following are the steps to encrypt your Android phone.

  • Go to Settings > Security > Encryption > Screen lock, choose the PIN code option and enter a PIN code.

  • This will make your Android set for encryption. Open the encryption screen by heading to the settings menu and by following Settings > Security > Encryption > Encrypt phone or Encrypt tablet.

  • Now type the Password or PIN that you created in the first step. For this case, a smaller PIN was preferred to lessen the encryption time that the device takes. However, a long and random password is better to apply.

  • The Android device would not get encrypted, or it needs to be plugged into a charger. Click the button ‘encrypt.’

  • To get to the final step, a PIN or Password is required for encrypting the phone.

  • Click the ‘Encrypt phone’ button. The duration of encryption depends on how long your PIN or Password is and can consume up to an hour.
  • Now the Android phone is successfully done with encryption. From now onwards, whenever you will turn on your Android device, it will ask you for the PIN or Password.

How to Encrypt Your SD Card

It’s likely to encrypt the SD card like you encrypt the Android phone. The good thing about SD card encryption that you can reverse the process without losing your data. Keep in mind that you must decrypt the SD card before factory reset so that you may not lose any of your data.

Steps To Encrypt your SD Card

  • Go to Settings>System>Security>Encrypt external SD card>Enable
  • You will be presented with options of whether to exclude multimedia files from the process of encryption. After that, you will be required to enter the Master Password. Remember that you must have 2GB free space on the SD card before you start encrypting it.

The process of encryption SD card may take some time according to the size of data that you are encrypting. The SD card encryption is open for use till when you access encrypted files from a password protector phone on which you encrypted them.

Steps To Decrypt your SD Card.

  • Settings>System>Security>Encrypt external SD card>Disable(enter master password)

Conclusion -How to Encrypt your Android Phone (a Complete Guide)

Android data encryption secures your phone in a more organised manner. All of us have a lot of data in our personal use of Smartphones which includes bank details. You cannot encrypt your whole Android phone using some specific apps. Also, for better security, you must consider using a reliable VPN. You may check, 5 Best VPN for Android 2018


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