Google Enhances Android Security with AI Deepfake Detection
Google is introducing a new security feature for Android devices, aimed at detecting and flagging phone calls where scammers use artificial intelligence to impersonate a user's personal contacts. This feature, called "fake call detection," is set to roll out globally this month to Android 12 and later devices, starting with Pixel devices, and will be enabled by default.
Once activated, the feature works automatically when both the caller and recipient are using the Phone by Google app. When a contact places a call, their device sends a silent, encrypted confirmation signal to the recipient's device in real time. If this signal is not sent, indicating the call may be spoofed, the recipient's device will ping the contact's actual phone to verify the call's authenticity.
How the Feature Works
If the contact's device confirms it is not placing a call, the recipient receives an on-screen warning to hang up immediately. As Google explained, "If a scammer tries to impersonate your contact, that initial confirmation signal will be missing. Your device will instantly notice this and ping your contact's actual device to double-check. If their real device says, 'I'm not making a call right now,' you'll get a warning on your screen advising you to hang up immediately."
This proactive alert helps users avoid falling victim to deepfake impersonation and call spoofing in real time. The feature is built on top of the Rich Communication Services (RCS) open standard and will only work on Android devices where the Phone by Google, Contacts, and Google Messages (with RCS enabled) apps are installed.
Addressing Widespread Fraud Tactics
According to Google, this new security feature addresses two widespread fraud tactics: scammers spoofing a familiar contact's phone number while simultaneously using AI voice-cloning technology to mimic that person's voice. The U.S. Federal Trade Commission (FTC) warned that reported losses from impersonation scams reached $2.95 billion in 2024 alone, while INTERPOL's March 2026 Global Financial Fraud Threat Assessment flagged impersonation fraud as one of the leading threats contributing to more than $440 billion in global losses last year.
Google noted that for years, people have relied on caller ID to know who is on the other end of the line, but this is no longer sufficient due to scammers' new tactics. To help protect themselves from fake calls, users can install the Phone by Google app from the Play Store and set it as their default phone app.
Expanding Support for Android In-Call Scam Protection
In December, Google also expanded support for Android in-call scam protection to multiple banks and financial apps in the United States, including Cash App (with 57 million users) and the JPMorganChase mobile banking app (with over 50 million downloads). This move is part of Google's ongoing efforts to enhance Android security and protect users from scams and fraud.
The introduction of the fake call detection feature and the expansion of in-call scam protection demonstrate Google's commitment to addressing the evolving threat landscape and providing users with robust security measures to safeguard their personal and financial information.
Source: BleepingComputer