Osmosis has suspended deposits, withdrawals, minting and redemptions for Alloyed BTC after a vulnerability on Nomic allowed an attacker to double-spend nBTC and send unbacked vouchers into Osmosis. The Nomic security failure affected 39.84 nBTC held inside Alloyed BTC, representing roughly 36% of the asset’s backing. Osmosis and the Inter-Blockchain Communication protocol were not compromised, with the vulnerability isolated to Nomic’s custom forwarding mechanism.