The "most secure" phone depends on your threat model, but top contenders for extreme security are the Purism Librem 5 (Linux, hardware kill switches for privacy) and Google Pixel phones running GrapheneOS (hardened Android with Titan M2 chip), while the Apple iPhone offers strong general security via iOS and Lockdown Mode. For enterprise/rugged use, the Bittium Tough Mobile 2C provides dual-OS and encryption. Niche options like the Sirin Labs Finney U1 focus on crypto security.
Purism (Librem Series)
The Librem 5 has been ranked as the number one most secure phone by cybersecurity experts. The phone features three hardware kill switches that cut power to the camera and microphone, Wi-Fi and Bluetooth modem, and the baseband modem.
These are the top phones for privacy and security:
Best phones for security and privacy
Fun Fact: According to CERT-IN advisories, Samsung, Xiaomi and Vivo rank among the most hacked phone brands in India, mirroring their dominant shipment figures.
Our top recommendations for Android protection are Bitdefender Total Security and Norton 360 Deluxe, both of which hold our Editors' Choice honor as cross-platform security suites. However, all the suites we've collected here are complete suites with robust Android apps, and most receive excellent lab scores.
What's the hardest phone to hack? Android phones are generally considered less secure than iPhones thanks to Apple's focus on encryption. But both are more susceptible to hackers thanks to their popularity. The more people who use a phone, the more high value a target it presents to hackers.
iOS has built its reputation as the more secure mobile platform through Apple's "walled garden" approach - and honestly, it works. The platform is famous for its closed ecosystem, Apple's pretty obsessive app review process, and consistent security implementation across all devices.
Most Secure Smartphones 2025
1. Blackphone PRIVY 2.0. The Blackphone PRIVY 2.0 targets professionals who face elevated surveillance risks or require secure communications for sensitive data handling. The phone provides encrypted voice communication and secure messaging capabilities, along with enhanced data privacy features.
Preventing Mobile Malware Attacks
The Pixel 9 Pro with GrapheneOS, Purism Librem 5, and Galaxy S25 Ultra are known for strong encryption. These phones also get updates often. Apple's iPhone 16 Pro Max has privacy tools that are simple to use. Remember, keeping your privacy safe is very important in 2025.
1 Samsung. The South Korean brand; namely Samsung, has 20% market share globally. Thanks to their models for every budget, most people prefer having a Samsung smart phone all-around the world!
Mobile- and browser-based banking is convenient and relatively safe, but there are risks to your finances and personal information if you don't take the proper steps to protect your online accounts.
Cost: iPhones are generally more expensive than many Android smartphones, making them less accessible for budget-conscious consumers. Customization: Unlike Android devices, iPhones offer fewer customization options, limiting users who prefer to tailor their phones to their personal preferences.
Even though Apple devices are much harder to gain access to and much harder to exploit, it can still be controlled or hacked. Both Android & iOS users must be careful of what they download (especially third-party applications) as they can be both harmed with malware or viruses.
iOS operating system security. Apple's iOS is known for its tight security since Apple doesn't share its source code with developers or allow users to easily modify their device code. That can make it more difficult for hackers to find vulnerabilities in iOS devices.
The Librem 5—by Purism—is the most secure phone available today for a long list of competitive reasons.