---
title: "Watt2Bit"
type: "entity"
entity_kind: "term"
status: "watching"
canonical_name: "Watt2Bit"
aliases: []
first_seen: "2026-07-09T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["Bit2Watt","EMI side channels","covert-channel exfiltration","power side-channel attacks"]
seek_code_commit: "98503b7"
---


Ji, Pan & Xu's own name (arXiv:2607.05993, accepted CHES 2026) for the "reverse" direction of their Bit2Watt cyber-physical vulnerability: instead of an attacker manipulating GPU scheduling to destabilize the power grid, Watt2Bit is the power/EMI side of that same attack read back out — a denial-of-service risk (thermal/harmonic stress tripping protection relays) and, per a dedicated lab-scale experiment, a covert data-exfiltration channel (FSK-encoded bits recovered from EMI with over 99% accuracy on a 50-bit test). First named in the vault 2026-07-09 as an unread "further lead" off the original Bit2Watt capture; read in full 2026-09-08. Its own paper hedges the exfiltration half of the claim inconsistently across sections (see [[question-corroborate-bit2watt-single-source-cap]]).

## References

- [[question-watt2bit-emi-exfiltration-mechanism]]
- [[question-corroborate-bit2watt-single-source-cap]]
- [[claim-bit2watt-gpu-scheduling-destabilizes-power-grid]]