Android Security Guide: Updates, 2FA, and AI Scam Detection

The guide cites a 2025 Pew Research Center study finding that nearly 75% of Americans have experienced some form of online scam. It notes that the spread of sophisticated AI tools has made online attacks more diverse, effective, and harder to detect. For example, vishing — voice-based phishing — has seen criminals use AI deepfakes to mimic the voices of victims' loved ones. Malware attacks are also more dangerous and adaptive, and many popular apps pose privacy risks, according to Engadget.

The guide recommends keeping the phone's software and apps up to date. It explains how to check the Android version under Settings > About Phone, where users can see the operating system status, security patch level, Google Play system status, and build number. When an update is available, Android sends a notification; users can also go to Settings > System > Software Updates to install it manually. For apps, the guide suggests opening Google Play, tapping the profile picture, and setting auto-update preferences under Settings > Network preferences > Auto-update apps. To check for updates on demand, users can tap "Manage apps and device" and select "Update all."

For basic protections, Engadget suggests enabling two-factor authentication on Google accounts, which adds a secondary verification step. It also advises turning on automatic backup through Settings > Google > Backup to prevent data loss if the device is stolen or lost. The Find Hub app, automatically enabled, allows users to see the device's last known location, ring it, erase personal information, track lost luggage, and share location with friends and family. The guide advises checking that location permissions are enabled and that "Allow device to be located" is turned on under Settings > Security > Find Hub.

Android's anti-scam tools include Scam Detection in the Phone app, which uses Gemini AI to identify conversation patterns typical of job offer or romance scams. This feature is disabled by default and, according to Engadget, is currently available only on Google Pixel phones. Google has announced it will bring the tool to other phones, starting with the Samsung Galaxy S26. A similar text-message scam alert uses on-device AI to warn about suspicious messages, offering options to dismiss, report, or block the number. Engadget notes that the AI algorithm runs entirely within the device, so no message content is uploaded externally.

The guide emphasizes that Android offers many options to keep devices secure and private, and encourages users to explore all of them given the growing sophistication of online attacks.