The relationship between Google and GrapheneOS, the Android-based operating system that prioritizes privacy and security above all else, has reached a point of no return. For nearly a decade, Pixel phones were the only devices officially compatible with this ROM, which removes Google telemetry and adds extra layers of protection. However, the recent launch of the Pixel 11 has triggered a break that seemed inevitable after months of tension.
The trigger was Google's decision to remove Memory Tagging Extension (MTE) technology from the Tensor G6 processor, a security feature present since the Pixel 8 and considered essential by GrapheneOS. After a week of attempts to adapt their system to the new devices, the development team confirmed that it is not possible to complete the work and recommended that users avoid buying the Pixel 11 if they intend to install GrapheneOS.
What is MTE and why is it so important for GrapheneOS?
MTE technology is a memory protection mechanism that operates at the hardware level. Essentially, it places an invisible tag on each 16-byte memory block and on every pointer authorized to access it. When a program attempts to read from or write to an unauthorized address, the chip detects the discrepancy and immediately stops the process, preventing the vulnerability from being exploited. This is particularly useful for curbing memory corruption attacks, which are responsible for over 60% of serious vulnerabilities in Android.
GrapheneOS uses MTE throughout its entire system base, including the kernel and operating system processes, allowing it to block entire categories of remote exploits before they even begin. The organization argues that the absence of MTE in the Tensor G6 degrades the security of the locked-state device to a level that no other improvement can compensate for. In fact, the team has called Google's decision an unacceptable cost-cutting measure, since implementing MTE requires additional circuitry and an on-chip random number generator.
GrapheneOS's response: Don't buy a Pixel 11
The GrapheneOS team has been unequivocal in its statement: if you want to install their operating system, buy a Pixel 9 or Pixel 10 instead of the Pixel 11. The developers maintain that the Pixel 8, 9, and 10 offer better software security than the new generation, and that the Pixel 10a was essentially a ninth-generation Pixel. They have also expressed hope that the upcoming Pixel 11a will include MTE, although there is no confirmation of this at the moment.
The organization has also criticized other aspects of the Pixel 11, such as its higher price without proportional improvements. According to their analysis, the Tensor G6 offers incremental CPU performance, retains the same underperforming GPU, and reduces RAM in the base Pro models. In comparison, Qualcomm's Snapdragon 8 Elite Gen 5 offers significantly superior single-core and multi-core performance, over 100% better GPU performance, and also features MTE.
The shift towards Motorola: a new era for GrapheneOS
Faced with this situation, GrapheneOS has decided to focus its resources on its partnership with Motorola . The collaboration, which will materialize in devices during 2027, will mark the beginning of a new phase for the project outside the Pixel ecosystem. According to information from NotebookCheck, Motorola is working on a flagship phone codenamed "Wukong," based on the upcoming Snapdragon 8 Elite Extreme Gen 6 chip, which will be unveiled at the Snapdragon Summit on September 22.
This device could become the first phone to combine full compatibility with MTE, a flagship Qualcomm chip, and official GrapheneOS support—something currently unavailable on any Pixel 11. However, it's worth noting that these specifications come from internal sources and could change before the official announcement, as Motorola has not confirmed the phone's existence.
The context: the gradual shutdown of Google's Android
This breakdown didn't happen in a vacuum. For months, GrapheneOS has been denouncing the progressive closure of Google's Android ecosystem, which makes auditing and adapting third-party software increasingly difficult. Google has replaced public kernel code downloads with forms that delay delivery by weeks, and since Android 16, it has removed Pixel devices as reference devices in AOSP. These measures have greatly complicated the work of independent developers.
Furthermore, analysis of the Pixel 11's bootloader reveals that the MTE code has been completely removed, not just disabled . This total absence suggests that Google deliberately decided to remove the functionality, likely to reduce manufacturing costs. Ironically, it was Google itself that spurred the widespread adoption of MTE by incorporating it into its Tensor chips before almost any other Android manufacturer.
For the average user, the loss of MTE might not make a noticeable difference in their day-to-day experience. The technology is probabilistic, not a guarantee, and most real-world threats to consumers—phishing, malicious permissions, SIM swapping—are unrelated to memory security. However, for journalists, dissidents, and government targets who can be attacked with zero-click exploits that sell for millions of dollars, the protection MTE provides is crucial.
GrapheneOS has announced that it has not yet determined what to do about this situation, but has made it clear that the most likely option is to completely disregard the Pixel 11 series and focus its efforts on Motorola's upcoming devices. The organization also noted that its operating system remains compatible with the Pixel 8, 9, and 10, which offer a higher level of security than Google's latest generation.
