Antivirus software is not a necessity for most smartphone users, as the nature of threats has evolved. iPhones isolate apps from the core system, making traditional antivirus scans ineffective; threats mainly come from scams like phishing links and deceptive messages. Android devices allow sideloading, increasing the risk of malware from unofficial sources. The primary dangers for users include phishing texts, fake login pages, scam calls, and social engineering tactics. To enhance security, users should keep their operating systems updated, use strong passwords, enable two-factor authentication, avoid suspicious links, and refrain from installing apps from unknown sources. Antivirus apps may be beneficial in specific situations, such as frequent link clicking or downloading from unfamiliar sites, with reputable options available for added protection against scams and unsafe websites.