The era of third-party antivirus software for mobile devices has significantly shifted, particularly as the dominance of traditional PCs has waned. Once ubiquitous names like Norton, McAfee, and Avast have seen a decline in relevance, especially as users increasingly forego antivirus installations on their smartphones. The primary reason for this trend is straightforward: modern Android devices come equipped with robust security features that often suffice for everyday users.
Modern Android protects your device from threats automatically
While Android is not impervious to malware or security breaches, it does incorporate various built-in protections designed to shield users from potential threats. For instance, Google Play Protect serves as a crucial first line of defense, effectively blocking millions of harmful apps from the Play Store. In 2025 alone, it reportedly prevented 27 million malicious applications from reaching users. This system conducts regular scans of installed apps, both during installation and afterward, to identify any risks. Depending on the severity of the threat, it can disable or remove the offending app.
Additionally, Android employs sandboxing technology, which isolates each application by assigning it a unique user ID. This method prevents apps from interacting with one another, thereby enhancing security. Regular security updates are also a staple of modern Android devices, addressing vulnerabilities as they arise. The permissions system is designed to be proactive, requiring user consent before granting access to sensitive data, while Google Play Protect alerts users to apps requesting such access. Furthermore, it automatically resets permissions for apps that have not been used for an extended period.
As technology evolves, so too does Android’s security framework. The integration of artificial intelligence is paving the way for advanced features, such as phone call spoofing protection, which aims to thwart scammers impersonating legitimate callers. Moreover, enhancements in live threat detection are being developed to identify suspicious app behaviors, like unauthorized SMS forwarding. Google’s new policies regarding app sideloading will soon restrict installations of apps that bypass Play Store protections to experienced users only, complete with mandatory ID checks for developers.
The biggest mobile risks are ones that an antivirus can’t protect you from
While the landscape of mobile security has transformed, the absence of viruses does not equate to a risk-free environment. Many threats now stem from social engineering tactics that exploit human psychology rather than technical vulnerabilities. Scammers frequently deploy fake text messages and phone calls to manipulate users into divulging personal information. Although Android is working on AI-driven protections against these tactics, such measures are not yet fully implemented.
Users also face risks when connecting to public Wi-Fi networks, particularly in crowded venues like airports or hotels. Without a VPN, devices can be susceptible to interception by malicious actors on the same network, who may hijack web sessions or steal unencrypted data. Additionally, malicious push notifications can mislead users into granting permissions to spammy websites, further jeopardizing their security.
Where a third-party Android antivirus might occasionally make sense
Risk assessment is nuanced; the level of threat an Android user faces can vary significantly based on their daily activities and habits. Public Wi-Fi networks present a notable risk, and while a VPN is the preferred method for securing connections, a third-party antivirus could serve as a supplementary measure to scan for malware that may have been inadvertently downloaded.
For users who frequently sideload apps, an antivirus solution may also prove beneficial. Google Play Protect does scan sideloaded apps, but this feature may not be effective if disabled or if the device lacks Google Play services. Furthermore, if users notice signs of potential infection—such as unexpected pop-ups, sluggish performance, or unusual battery drain—an antivirus app can provide clarity and reassurance.
Older Android devices that no longer receive operating system or security updates are at a heightened risk. While an antivirus cannot replace these critical updates, it can offer a layer of protection against known vulnerabilities that may be actively exploited.
Is an Android antivirus really necessary?
For the majority of users, antivirus applications on Android smartphones are not essential. Google’s Play Protect effectively safeguards against rogue applications, while a VPN can enhance online security. The design of Android apps inherently limits their ability to interact with one another, and the opt-in permissions system allows users to control access to their data.
However, for those who engage in high-risk activities—such as visiting dubious websites or sideloading apps without Play Store protections—an antivirus may provide peace of mind. Trusted developers like Norton continue to offer comprehensive solutions that include VPN services, ad blocking, and SMS filtering.
Ultimately, education remains a powerful tool in safeguarding against threats. By being vigilant and discerning, users can significantly reduce their risk exposure. Whether or not to install an antivirus app is a personal decision, influenced by individual habits and risk tolerance. Fortunately, the built-in security measures of Android ensure that most users enjoy a level of protection, often without even realizing it, as these measures adapt to counter emerging threats.
