Android security patch: what are they and how to update to the latest version

Android security patch - 9to5Google

Security in computer systems is really important. And, of course, that includes mobile phones as well. Android is a very popular system and is sometimes targeted by attackers and malware developers. This forces Google and the rest of the manufacturers to be very vigilant and constantly look for gaps in the system. Once detected, they are closed thanks to tools such as security patches . What exactly are they on Android? What are they for? How to know what patch your mobile has and how to get the latest one available? All these questions are discussed in this article.

What are Android security patches and what are they for?

The term “patch” is often used in the software world to refer to an update or modification that tries to fix a security problem . Therefore, when we talk about security patches on Android we mean updates explicitly released to keep the device safe.

On the first Monday of every month, Google publishes on the security page Android official all vulnerabilities found by your technicians and your partner’s technicians. All detected problems are ordered taking into account their severity . According to the company itself, the most dangerous flaw is the one that allows code to be remotely executed in the terminal with advanced privileges.

Based on the bugs found, an update for Android AOSP is being prepared (Android Open Source Project) that eliminates the detected gaps. From that moment on, Google’s partners, generally renowned manufacturers such as Samsung or Xiaomi, pick up the baton and include the security patch in their updates . It is not strange that these companies release updates with the sole objective of implementing the monthly security patch.

In short, an Android security patch is an update that eliminates bugs, gaps and other problems in the system source code. Its purpose? Prevent and avoid external attacks . With this in mind, the importance of these updates in the Android world is clear. In view of this, many manufacturers supply them for years, even when the device no longer receives new versions of the operating system.

Differences between security patches in Android and those Google Play updates

Since the arrival of Android 10, Google has divided security updates in two ways. On the one hand, the classic patches , which are implemented at a deeper level of the operating system and modify its source code. In this case, it is necessary for manufacturers to release complete system updates and, depending on their goodwill, these arrive more or less frequently. For this reason, Google introduced changes to this traditional model.

It did so with the Google Play security patches , which do not depend on the manufacturers and that are installed from the app store. This is possible thanks to the fact that Android has become, over time, a more modular operating system. With the arrival of Android 12, these types of security updates cover more fields. This minimizes the responsibility that manufacturers have on the release of patches and implements security measures for all users.

How to know what security patch I have

If you want to know what patch you have installed on your device , go to the phone settings and open the section Security . It is possible that in some layers of personalization this information is in the section About phone .

Opciones de seguridad en Android 11

Security options in Android 11

Under the section Security update you will see when you received the latest Android security patch. Knowing that Google releases them on a monthly basis will help you get an idea of ​​how up to date your device is.

Versión del parche de seguridad

Security patch version

In the section Google Play system update you will see the date of the last Google Play security update.

Versión de la actualización de Google Play

Google Play update version

How to install the latest security patch

To get the Last patch provided by the manufacturer you must update the device. Do so by going to the section Software update .

Nueva versión del sistema disponible

New system version available

Tap the button Update now to start the download and installation. As you can see, in our case the update includes a new security patch.

Iniciar actualización

Start update

Once the Android update is installed, repeat the process mentioned above to verify that you have the new security patch.