What is Chrome's Device Bound Session Credentials?

DBSC binds browser sessions to your device's hardware key via TPM or Secure Enclave, making stolen cookies expire fast and unrenewable.

Does DBSC work on Mac and Linux?

Windows now in Chrome 146; macOS soon. Linux/software keys in works—no firm date.

Will DBSC stop all session hijacks?

No, but it neuters infostealer cookie grabs. Phishing, malware persistence still risks.

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Chrome's Device-Bound Sessions Land on Windows, Slashing Cookie Theft Risks

Infostealer malware swiped session cookies from millions of devices last year alone. Chrome's new Device Bound Session Credentials (DBSC) ties them to hardware, rendering theft pointless.

theAIcatchup Apr 10, 2026 3 min read

Diagram illustrating Chrome's DBSC protocol flow between browser, TPM, and server

⚡ Key Takeaways

DBSC uses TPM/Secure Enclave to bind sessions to hardware, killing stolen cookie value. 𝕏
Google saw reduced theft on its properties; Chrome's 65% market share amplifies impact. 𝕏
Sites add minimal backend endpoints; W3C standard with Microsoft/Okta input ensures adoption. 𝕏

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#chrome security #cookie theft #device bound session credentials #infostealer malware

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Originally reported by HelpNet Security

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