Tag Archive for: Phones

What is the Titan M2 security chip in Google’s Pixel phones?


Google IO 2022 titan m2 in the pixel 6a

With the Pixel 6 series, Google began developing its in-house Tensor SoC. But that wasn’t the first time the search giant used a piece of custom silicon in its smartphones – the Pixel 2’s Pixel Visual Core was technically the first. One generation later, the company announced that Pixel 3 devices would include a hardware security module dubbed Titan M. Then, in 2021, Google followed it up with the Titan M2. The security chip has since become a selling point for Google phones like the Pixel 8 series.

So in this article, let’s take a closer look at the role of the Titan M2 in Pixel devices, how it works, and why it’s even necessary in the first place.

What is the Titan M2 chip all about?

Picture showing Google's Titan and Titan M security chip

Google’s Titan server chip (left) and first-generation Titan M security chip (right)

The Titan M2 is a dedicated security chip included in Pixel 6 and Pixel 7 series smartphones. You’ll also find it in some other Google products like the Pixel Tablet. Google designed the Titan M2 in-house so that it could exercise complete control over its feature set. The chip is based on the RISC-V CPU architecture and contains its own memory, RAM, and cryptographic accelerator.

The Titan M2 is one of the many measures Google has employed to improve smartphone security over the years. The company uses the chip in its Pixel phones to provide an additional layer of protection on top of Android’s default security measures.

Google designed the Titan M2 chip to augment Android’s default security measures.

Take Android’s mandatory full-disk encryption. On most devices, it relies on a security feature known as a Trusted Execution Environment (TEE), which is essentially the secure area of a processor. Android devices store their encryption keys within this secure area, which is in turn guarded with your pattern, PIN, or passcode. In other words, the TEE isolates cryptographic keys and never reveals them to the user or even the operating system.

Virtually all smartphone SoCs in this day and age have a TEE or similar secure environment. On Snapdragon chips, it’s commonly referred to as the Qualcomm Secure Execution Environment (QSEE). Apple’s Arm-based chips like the M1 have the Secure Enclave. With these…

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Google tests a ‘Private Space’ feature on Android phones, allowing secure hiding of apps


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For Android smartphones, Google is actively developing a feature called “Private Space” that will allow users to safely conceal apps. This feature, which is expected in a future Android OS update, allows users to hide files and apps from other users, similar to Samsung’s Secure Folder feature that has been around for six years.

This feature, found in the Security & Privacy settings, enables users to create a protected Android user profile using biometrics or a password/PIN. Mishaal Rahman found this development in the Android 14 QPR2 beta. This feature improves privacy when sharing the device by hiding not just the presence of the app but also its notifications.

To preserve the covert use of the “Private Space” feature, Google is thinking of implementing a search bar trigger to reveal these apps.
The possible inclusion of the feature in Android 15 may indicate that smartphone makers will use it more widely, giving more people access to Samsung’s Secure Folder-like features. Rahman points out that not all features were activated in the most recent beta because it’s still in development.

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Apple and Google have made phones the key to your digital life. Here’s what to do if you lose it.


The night before I was supposed to go on a long and well-deserved vacation, something very, very bad happened: I lost my phone. I had a friend over and, I decided, he must have accidentally taken my phone with him when he left. Which was a problem because all methods I had to contact him — including his phone number and address — were in the one thing I now didn’t have.

There’s nothing like spending 30 minutes panicking that you’ve lost your phone to make you realize just how devastating that loss can be … and how poorly you’ve prepared for the possibility. Access to just about everything I wasn’t already logged into on my computer was dependent on access to my phone, with my mobile-device-only password manager and multifactor authentication apps and text messages. Actually, had I even backed my phone up to my iCloud account? Didn’t I delete my backups to free up storage space? Was I logged into iCloud on my laptop? Would it even be possible to log in, since my passwords and authentication tools were only on the phone?

“I don’t think most people prepare for losing their phone,” Sherrod DeGrippo, director of threat intelligence strategy at Microsoft, told Vox. “Which is surprising considering how many people [have] lost their phone, broke their device, or had it stolen. Despite many people having experience here, they aren’t often taking the right precautions.”

Our phones have become our main — in some cases, only — gateway to so many things. If you lock yourself out of your house, you can call a locksmith to get back in, even if it’s the middle of the night on a holiday. But if you lose your phone, you may lose your keys to a whole lot more, and it may take a while, if ever, to get that access back.

Ironically, this is especially true if you’ve proactively taken the kind of basic digital security measures most experts would recommend. My efforts to secure my accounts from bad actors — some of which relied on having my phone — might have made it that much harder for me to get back into them.

That’s not to say that you shouldn’t do those things — you absolutely should. You just want to make sure you’re preparing for the…

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Android phones could steal a major feature from iPhone 14


We’ve already heard rumors that Android phones could get a version of iPhone 14’s Emergency SOS via satellite feature. Back during CES, Qualcomm announced plans to add satellite support to future phones, but now it sounds like Google could be working on its own version of the feature.

Developer Neil Rahmouini (via The Verge) uncovered code in the Google Messages app that suggests some kind of integration with the Garmin Response emergency services. This isn’t the first discovery over the past couple of weeks, either. Rahmouni also tweeted out what appears to be an early version of the UI for sending messages via satellite.

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