Google Pixel 10 modem security with Rust programming language

Google has implemented a significant change in the architecture of the new Pixel 10—the modem firmware now uses the Rust programming language. This move aims to address one of mobile security's oldest problems: memory-related vulnerabilities. These include errors like buffer overflows, which have been a weak spot for decades in systems written in C and C++. Attackers often exploit these to gain access to devices.

The main advantage of this new technology is protection against remote code execution (RCE) attacks. In theory, a hacker could compromise a device simply by sending a special signal or even an SMS—without any action from the owner. Thanks to Rust, such scenarios are now practically impossible. The language is inherently designed to prevent critical memory-handling errors, meaning vulnerabilities are blocked at the development stage.

The first step involved rewriting a key component: the modem's DNS parser. This component constantly processes network data, making it one of the system's most vulnerable parts. In the Pixel 10, this element already runs on Rust, significantly reducing the risk of network-based attacks. Interestingly, this innovation does not affect internet speed, signal strength, or performance in any way. It all happens "under the hood" and is focused solely on security.

Google isn't stopping here: the company plans to expand Rust usage to other modem components in the future.

The Pixel 10 is the brand's first smartphone with this modem-level protection approach. While users won't see this feature in their settings, such changes could prove crucial in combating modern cyber threats.