The Harmony protocol stated that it is working with the team and exchanges to halt and freeze funds, and is also preparing a patch and rollback options.
According to Juiceberg analyst, the attack was carried out via "empty blocks," through which the attacker unauthorizedly released 4 billion $ONE tokens—26% of the total supply. Approximately 2.8 billion tokens have already been withdrawn to exchanges, causing the price of ONE to plummet. It is noted that the totalSupply endpoint, meanwhile, hides the actual issuance.
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