As phone fraud continues to erode trust in everyday communication, Google is quietly extending one of its more consequential security tools beyond its own hardware. Evidence embedded in the Phone app's code suggests that vivo — a manufacturer whose users often live in regions where scam calls are endemic — is next in line to receive Scam Detection, the real-time machine learning system that already guards Pixel and Samsung Galaxy S26 users. The expansion reflects both Google's confidence in the technology and a broader ambition: to make fraudulent calls harder to execute, one Android partnersh
Google's Scam Detection Expands to Vivo Phones
The code is there, and the pattern is established.
Mark
Why does Google care whether vivo phones get this feature? Isn't that vivo's job?
Mimi
Google built something that works—a real tool that stops real fraud. Sharing it means more people are protected, which is good for everyone. It also means more data flowing back to Google to make the detection smarter.
Mark
So it's partly altruism, partly self-interest.
Mimi
Yes. Google gets better models, vivo gets a security feature without building it from scratch, and users get protection. That's how platform ecosystems work.
Mark
The teardown found code references. How confident should we be that this actually launches?
Mimi
Code references are strong signal, but not certainty. The feature could be shelved, delayed, or modified. But Google doesn't usually hide features in the app unless they're planning to ship them.
Mark
What about the implementation question—vivo's app versus Google's app?
Mimi
That's the real unknown. If vivo uses its own dialer, it keeps users in its ecosystem. If they push Google's app, they're essentially admitting Google's software is better. Either way, there's friction.
Mark
Does it matter to the user which way it goes?
Mimi
Not much. Either way, they get the protection. But it matters to vivo's control over the user experience, and to Google's reach.
Der Puls
- Phone scams remain a persistent and growing threat, particularly in regions where vivo holds significant market share, making the stakes of this expansion genuinely high.
- Code buried inside Google's latest Phone app teardown reveals vivo-specific references to 'Sharpie' — Google's internal codename for Scam Detection — signaling a rollout is close.
- Key questions remain unresolved: which vivo devices qualify, whether older models like the X300 series are included, and whether the feature will live inside vivo's own dialer or Google's.
- The most likely launch vehicle is vivo's upcoming X500 flagship series, though no official announcement has been made.
- Each new manufacturer that adopts Scam Detection feeds more call data back into Google's models, creating a reinforcing cycle that sharpens detection accuracy across the entire ecosystem.
As phone fraud continues to erode trust in everyday communication, Google is quietly extending one of its more consequential security tools beyond its own hardware. Evidence embedded in the Phone app's code suggests that vivo — a manufacturer whose users often live in regions where scam calls are endemic — is next in line to receive Scam Detection, the real-time machine learning system that already guards Pixel and Samsung Galaxy S26 users. The expansion reflects both Google's confidence in the technology and a broader ambition: to make fraudulent calls harder to execute, one Android partnership at a time.
Google's Scam Detection feature has been expanding steadily beyond Pixel phones. For roughly a year, it has guarded Samsung Galaxy S26 series users by listening to incoming calls and flagging the patterns — voice spoofing, impersonation, scripted fraud — that its machine learning models have learned to recognize. Now, a teardown of Google's Phone app suggests vivo is next.
Developers tracking the app's evolution found references to vivo support for "Sharpie," Google's internal codename for the feature. The code is fragmentary but legible enough to suggest a rollout is imminent. The most probable launch vehicle is vivo's upcoming X500 flagship line, though whether older devices like the X300 series will be included remains an open question — manufacturers frequently reserve new security capabilities for their newest hardware.
How Google and vivo will implement the feature is equally uncertain. Samsung folded Scam Detection into its own native dialer. Vivo could do the same, or it could push users toward Google's Phone app instead — a path that would give Google more direct control but require a change in default apps. The teardown doesn't yet reveal which direction they've chosen.
What the evidence does confirm is Google's intent to spread the technology broadly. Real-time scam detection is meaningfully more effective than after-the-fact reporting, and for vivo users in fraud-heavy regions, its arrival could reduce genuine financial and identity risk. The expansion also reflects a virtuous dynamic: more partners mean more call data, which sharpens the underlying models for everyone. The code is in place. An official announcement is the remaining step.
Google's Scam Detection feature has been quietly expanding beyond the company's own Pixel phones. For the past year or so, the tool has protected users on Samsung's flagship Galaxy S26 series and newer by listening in on incoming calls and alerting them in real time when the conversation bears the hallmarks of a scam—the telltale patterns of voice spoofing, impersonation, or fraud that the company's machine learning models have learned to recognize. Now, evidence suggests the feature is about to reach a third major Android manufacturer: vivo.
The discovery comes from a teardown of Google's latest Phone app, the dialer software that ships on Pixel devices and can be installed on other Android phones. Buried in the app's code are references to vivo support for what Google internally calls "Sharpie"—the codename for Scam Detection. The references are fragmentary but clear enough that developers tracking the app's evolution believe a rollout is imminent.
Which vivo devices will actually receive the feature remains unclear. The most likely candidate is the upcoming X500 family, vivo's next-generation flagship line. Whether older models like the X300 series will be updated to include Scam Detection is an open question—manufacturers often reserve new security features for their latest hardware, even when older phones could technically support them.
Equally uncertain is how Google and vivo will choose to implement the feature. Samsung has integrated Scam Detection directly into its own dialer app, keeping the experience within the Samsung ecosystem. Vivo could follow the same path, building the capability into its native phone application. Alternatively, vivo might encourage users to adopt Google's Phone app instead, which would give Google more direct control over the experience but would require users to switch away from their manufacturer's default dialer. The teardown evidence doesn't yet reveal which approach Google and vivo have settled on.
What's clear is that Google is committed to spreading Scam Detection beyond its own hardware. The feature represents a genuine security win—real-time detection of fraudulent calls is more effective than asking users to manually identify and report scams after the fact. By licensing or integrating the technology into other manufacturers' devices, Google extends that protection to millions more people. For vivo users in particular, many of whom live in regions where phone fraud is endemic, the arrival of Scam Detection could meaningfully reduce their exposure to financial and identity theft.
The expansion also signals Google's confidence in the underlying technology. The company has had years to refine the machine learning models that power Scam Detection, and the feature's success on Pixels and Samsung phones has presumably given Google the data and validation it needs to offer it to other partners. As more manufacturers adopt the tool, Google gains more call data to train on, which in turn makes the detection more accurate—a virtuous cycle that benefits everyone in the ecosystem.
For now, vivo users will have to wait for an official announcement. But the code is there, and the pattern is established. Scam Detection is no longer a Google-exclusive feature, and it won't stay confined to Samsung much longer either.
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