When you start a new Windows computer, install a antivirus It is usually the mandatory step to protect yourself from malware and avoid security problems. This habit leads many to wonder if we should do the same when configuring our Android mobile:It is really necessary to install an antivirus on Android Or are the built-in security measures offered by the operating system itself sufficient?
In this article we are going to analyze in depth whether these types of applications are essential in a Android device, the advantages and limitations of antivirus software, how Google's native security works, and best practices for protecting your smartphone against viruses, malware, and other digital threats. We'll also offer expert perspectives, tips for choosing a good antivirus (if you decide to install one), and official recommendations from organizations like INCIBE and OSI.
Is it necessary to install an antivirus on Android?
Android's popularity makes it the most widely used mobile operating system in the world and, therefore, an attractive target for malware development. According to analysis by cybersecurity experts, there are millions of malicious apps designed for Android. However, while this figure may sound alarming, it should be put into context: the real probability of an average user becoming infected with a virus on their mobile phone is low if they follow basic security guidelines.
What is certain is that the Android ecosystem It is more open than other platforms, which makes it easier to install apps from external sources (APKs, alternative stores, or websites of dubious origin). This is where the main risk lies: most infections come through applications downloaded outside the Play Store, and not so much from browsing or opening suspicious emails as happens on computers.
The key question is: do you need an antivirus on Android? The answer depends on your usage habits and your level of knowledge about cybersecurity.
How does Android protect users from malware?
Android natively incorporates various threat protection systems and layers, which are regularly updated to respond to new risks:
- Google Play Protect: It's a built-in security tool that automatically scans apps available on the Play Store before allowing them to be downloaded, as well as analyzing apps installed on your device (even those from outside the store). If it detects suspicious behavior, it alerts you and can automatically delete the app.
- Monthly security updates: Google periodically releases security patches to address vulnerabilities detected in the operating system and native apps. Keeping your device up-to-date is essential.
- Permission system: Android has evolved to give users greater control over the permissions they grant to each app (access to the camera, microphone, location, contacts, etc.). Reviewing and granting permissions only when necessary is a great shield against spyware and other risks.
- Safe Browsing in Google Chrome: If you access a potentially dangerous site, your browser will alert you before you access it and block the malicious website.
- Additional features on manufacturer devices: Many brands like Samsung, Xiaomi, and Realme integrate their own security tools (app analysis, secure folders, suspicious file cleanup, etc.) that add additional protection to the end user.
These mechanisms allow most threats to be blocked before they cause any harm. Therefore, for most people, the built-in system is sufficient as long as they use their mobile phone responsibly.
Main forms of infection on Android and how to avoid them
Unlike computers, Android viruses are not spread strictly through executable files., but rather through malicious apps that request inappropriate permissions or disguise their true purpose. These are the most common entry routes:
- Downloading apps outside of Google Play: Installing software from alternative stores, APK files obtained from forums, or unofficial websites exponentially increases the risk of encountering malware.
- Phishing and suspicious links: SMS messages, emails, or notifications that mimic banks, carriers, or government services can redirect you to fraudulent websites to steal your personal data.
- Excessive permissions: Innocent-looking apps (e.g., a flashlight) that request access to your contacts, messages, location, microphone, or camera often hide malicious intent.
- Apps with malicious updates: Even apps initially downloaded from the Play Store can become dangerous if, after an update, they introduce malicious code that temporarily escapes automatic controls (cases like CamScanner or apps related to current events are examples of this).
To avoid infections:
- Always download apps from the Play Store or official stores.
- Read reviews and verify the developer of the apps before installing them.
- Review the permissions each app requests.
- Don't open links or download files from messages, emails, or WhatsApp messages from unknown senders.
- Keep your device and apps updated.
When is it advisable to install an antivirus on Android?
For most users, It is not essential to install an antivirus if they follow the aforementioned best security practices and only download apps from the Play Store. However, there are certain user profiles and situations in which it may be appropriate to add an extra layer of protection:
- Advanced or experimental users: Those who frequently install apps from outside the Play Store, try APKs from alternative sources, or manipulate the system (root, custom ROMs) are more exposed to risks.
- Inexperienced users: Those who don't check permissions, tend to open links in suspicious messages, or agree to install apps without verifying the source can benefit from the help of an antivirus.
- Frequent browsing on untrustworthy sites: If you use your mobile phone to access download sites, forums, or pirated services, an antivirus can detect threats that bypass other controls.
- Phishing protection and parental controls: Many modern antivirus apps offer modules to block fraudulent sites, analyze suspicious links, and offer additional features such as parental controls, password management, and VPN, useful in family or corporate settings.
In any of these cases, antivirus is a complement, not a foolproof solution. Its usefulness lies in acting as an additional filter, but no software can replace common sense and cybersecurity training.
Are Android antivirus programs effective? Advantages, limitations, and expert opinions
The mobile antivirus applications They typically offer features such as app and file scanning, phishing protection, suspicious call blocking, anti-theft, and real-time security alerts. However, independent studies and tests have shown that:
- Many free antivirus apps detect only very basic threats and may even serve primarily to display ads, without providing any real protection.
- Antivirus programs from well-known companies (Bitdefender, Kaspersky, McAfee, Avast, AVG, TrendMicro, ESET, etc.) usually perform better in their scans, but they also cannot inspect the Android system as deeply as they do in Windows.
- In most cases, they are limited to scanning apps during installation or launch, and checking for suspicious attachments or links, but they cannot repair a severely compromised system.
- Some antivirus programs consume battery and resources, can send intrusive notifications, and collect user data, so it's important to choose a reliable one.
Experts consulted by specialized media highlight that antivirus for Android They provide extra security, especially useful for risky or unsuspecting users, although they cannot match the level of control and cleanliness offered on platforms like Windows.
The National Cybersecurity Institute (INCIBE) and the Internet Security Office (OSI) agree in recommending installing an antivirus only for those seeking an additional layer, but they emphasize the importance of updating the system, ensuring permissions are maintained, and downloading apps only from official stores.
Additional features of the most popular mobile antiviruses
If you decide to install an antivirus app on your Android phone, it's a good idea to choose solutions from reputable companies and check out their most relevant features:
- Analysis in real time: Automatic review of apps, files, and links while you browse or use your device.
- App Lock: You can protect access to sensitive applications (banking, private photos, chats, etc.) with a PIN or fingerprint.
- Anti-theft device: Function to remotely locate, lock or erase the device in case of loss or theft.
- Wi-Fi Network Analysis: Detects potential threats on public or home connections, displaying connected devices and potential attacks.
- Anti-phishing protection: Identify fraudulent sites and links in emails, SMS, or instant messaging.
- Permission and privacy management: Reports the permissions granted to each app and alerts you if any of them perform suspicious actions.
- VPN and extra modules: Some apps integrate virtual private networks for anonymous browsing, password managers, and parental controls.
Among the most popular applications that integrate these and other functions are:
- AVG AntiVirus: Scans apps, games, and files; stops tasks that slow down your device, deletes unnecessary files, and analyzes networks.
- Avira Security: Virus scanning, data breach checking, browsing anonymization, Wi-Fi connection analysis, PIN protection.
- Kaspersky Antivirus: Background scanning, financial data protection, link filtering, anti-theft features, and blocking of private messages or photos.
- Antivirus & Virus Remover, Phone Booster: Scans, removes viruses and improves performance by cleaning RAM.
- ESET Mobile Security: Includes home network scanning, anti-phishing protection, proactive anti-theft features, and app scanning after every update.
Tips for choosing a good antivirus for your mobile
If you think you need an antivirus, follow these recommendations to choose the best option:
- Select apps from reputable and trusted manufacturers. Check out ratings, company history, and other users' opinions.
- Be wary of little-known apps or those with suspiciously positive reviews.
- Check the number of downloads. Apps with millions of users tend to be more reliable and better audited.
- Check the permissions requested by the antivirus. Avoid apps that request unnecessary access to your personal data.
- Keep your antivirus updated and perform periodic analysis if you decide to use it.
- Consider investing in paid options if you're looking for advanced features. such as anti-theft protection, VPN, parental controls, or technical support, as they tend to consume fewer resources and offer better customer service.
- Prefer open source solutions if you have privacy concernsSome apps available in stores like F-Droid offer transparency in their code and prevent the abuse of personal data.
Good cybersecurity practices on Android
Beyond the use of antivirus, the best defense is yourselfExperts agree that most digital infections and scams can be avoided with responsible habits:
- Never download apps or files from untrusted sources. Always stick to the Play Store or official stores.
- Don't grant unnecessary permissions to apps. Review your privacy settings regularly.
- Do not open attachments or links that you have not requested., even if they appear to come from trustworthy individuals or companies.
- Always keep the operating system updated and all your applications.
- Use secure unlocking methods (PIN, fingerprint, pattern) and activate anti-theft protection.
- Turn off Wi-Fi and Bluetooth when not in use.
- If you change your phone, delete all personal information before selling or giving it away.
As the OSI reminds us, the key is to remain vigilant, pay attention to each app's permissions, and be careful with the information we store on our devices.
Android security doesn't depend solely on the use of antivirus software, but on the set of measures and precautions adopted by each user. Installing an antivirus software can be useful in certain cases, but for most cases, maintaining strict best practices and taking advantage of native tools such as Google Play Protect will be enough to enjoy a secure and threat-free mobile.
