Most Android users find that a third-party antivirus app is unnecessary, although this conclusion can vary significantly based on individual device usage. The days when Norton, McAfee, and Avast were ubiquitous on Windows machines have largely faded, and that trend did not carry over to mobile devices in the same manner. Today’s Android smartphones come equipped with robust built-in security features, which often suffice for the average user.
However, it’s essential to recognize that Android is not without its vulnerabilities. Like any software, it is susceptible to viruses, malware, and security breaches, facing threats that are predominantly unique to mobile platforms. A 2025 Gen threat report highlighted a staggering tripling of malicious push notifications within just three months, while another report pointed to spyware as an increasingly invasive issue on mobile devices.
Built-in Protections and Evolving Threats
Google Play Protect serves as the frontline defense against harmful applications, automatically managing much of the security landscape. In 2025 alone, this service blocked an impressive 27 million malicious apps from the Play Store. It conducts scans at both the installation phase and subsequently, taking action to disable or remove any apps deemed risky. Additionally, Android employs sandboxing to isolate each app, assigning secure user IDs that prevent unauthorized interactions between applications. Regular security updates address vulnerabilities, while an opt-in permissions system safeguards sensitive files and contacts.
The landscape of mobile security continues to evolve, with artificial intelligence now playing a pivotal role. Android is set to introduce phone call spoofing protection, aimed at thwarting scammers who impersonate high-risk callers, such as those from banks. Furthermore, the platform is enhancing live threat detection capabilities to identify suspicious app behaviors, including SMS forwarding. Google has also updated its sideloading policy, allowing apps that bypass Play Store protections to be installed only by “experienced users,” accompanied by a 24-hour cooldown period and mandatory ID checks for developers.
Nevertheless, the most significant risks to mobile users often lie beyond the reach of antivirus software. Social engineering tactics remain at the forefront of these threats. Scammers frequently rely on fake texts and phone calls, while phishing links designed to deceive users into revealing passwords or personal information are all too common. Psychological manipulations, such as fake tech support calls or financial romance scams, present challenges that no antivirus scanner can intercept. Although Android is working on AI-powered live threat protection to combat some of these issues, this feature is not yet available.
Connectivity also introduces potential vulnerabilities. Connecting to an open Wi-Fi network can expose devices to risks, especially without the protection of a VPN. Attackers on the same network may intercept unencrypted data or hijack web sessions, redirecting users to fraudulent sites. The issue is exacerbated by malicious push notifications; a simple misclick on “allow” can unleash a barrage of deceptive alerts, some even warning users that their device has been infected.
When Third-Party Antivirus May Be Beneficial
There are specific scenarios where a third-party antivirus application could be advantageous. Public Wi-Fi networks in airports or hotel lounges pose enough risk that even the TSA advises caution. While a VPN is the more robust defense, an antivirus app can serve as a secondary layer of protection, verifying downloaded files for safety. Users who sideload apps may also find value in such applications, particularly on devices lacking Google Play services or with Play Protect disabled, as Google’s enhanced sideloading protections are limited to certified Android devices. Therefore, when clear signs of infection emerge, a scan can provide a conclusive assessment of the situation.
