Security experts recommend implementing a series of practical settings to protect smartphones from hacking and data breaches.

These measures are critical because smartphones store banking details, passwords, photos, and private conversations, making them primary targets for cybercriminals.

One of the most effective defenses is the use of strong, unique passwords or passkeys. Experts said that these tools can prevent the majority [1] of unauthorized account access. While some suggest using a password manager to generate complex passwords, others recommend adopting platform-provided passkeys to replace traditional passwords entirely.

Adding a second layer of security through two-factor authentication further reduces the risk of account takeover. Users are also encouraged to conduct regular reviews of app permissions to ensure software is not accessing unnecessary personal data.

Maintaining current software is another vital step. Enabling automatic software updates can reduce vulnerability exposure by up to 70% [2]. This ensures that the latest security patches are applied immediately to close gaps that hackers often exploit.

For those who travel or use public infrastructure, physical security is a concern. Experts said not to use untrusted USB chargers in public spaces. The use of a USB data-blocker gadget can prevent the theft of data during public charging sessions.

Finally, users should enable remote-wipe capabilities. This feature allows a user to erase all personal data from a device if it is lost or stolen, preventing a thief from accessing sensitive information.

“Automatic software updates can reduce vulnerability exposure by up to 70%.”

As smartphones increasingly become the central hub for financial and personal identity, the attack surface for cybercriminals grows. The shift toward passkeys and the emphasis on automatic updates indicate a move away from user-managed security toward systemic, platform-level protections that reduce human error.