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Vercel rolls out device-bound sessions to block stolen cookies

BleepingComputer reported that Vercel is gradually enabling Device Bound Session Credentials so stolen session cookies cannot be reused on another device.

Vercel is gradually rolling out Device Bound Session Credentials on its platform as a defense against information-stealer malware, BleepingComputer reported Wednesday1.

The feature, announced by Vercel chief technology officer Malte Ubl on X, binds a login session to the user's device with a private key stored in a TPM, so a stolen session cookie cannot be reused on another device, the report said1.

BleepingComputer said the rollout complements Chrome's App-Bound Encryption, which aims to make cookie theft harder, by also blocking reuse of a stolen cookie on another machine1.

The article recapped an April incident in which Vercel said attackers reached internal systems after compromising a Context.ai employee's Google Workspace account and viewed environment variables that had not been marked sensitive1.

A threat actor impersonating ShinyHunters later tried to sell alleged stolen source code, access keys and database data, according to that earlier reporting as summarized Wednesday1.

Sources

  1. BleepingComputerVercel rolls out new protection against stolen session cookie attacks