Firmware.
BIOS rings with the same provenance discipline.
On the roadmap — vote it up.
What's broken without it.
Firmware is the riskiest update class on the endpoint and the least disciplined. BIOS updates ship from OEM portals, get applied by sysadmins on a whim, and survive reimage. A bad BIOS bricks machines or, worse, lands persistent malware below the operating system.
The approach.
Attestree Firmware applies the same ring-based attested workflow to BIOS / UEFI updates. Vendor signatures pinned at ingest. Updates apply through staged rings with rollback policies. Every applied firmware version emits a signed attestation tied to the machine’s TPM measurement.
Roadmap, in three moves.
TPM-bound attestations
Every applied firmware version recorded in a signed receipt bound to platform PCRs.
Vendor signature pinning
Pin Dell, HP, Lenovo BIOS signing keys; reject anything not chained to them.
Pre-flight reversibility
Refuse firmware updates that cannot be downgraded without an OEM RMA.
Ready for firmware on your fleet?
Get on the list — your vote moves this up the roadmap.