Harmony Weighs Rollback After Claims of 4B ONE Exploit Ecosystem English News
MarketsMagazine ResearchSponsored About DOGE$0.07064 1.26%TRX$0.3374 0.34%LINK$8.76 0.38%ZEC$496.83
3.94%ADA$0.1842 0.61%XRP$1.01 0.47%ETH$1,897.64 0.58%BTC$63,888.56 0.34%XMR$396.54 0.25%BNB$612.55 0.21%XLM$0.1617
0.80%SOL$76.49 0.61%HYPE$57.37 4.68%Written by Ezra Reguerrastaff writerReviewed by Yohan Yunstaff editorWritten by Ezra
Reguerrastaff writerReviewed by Yohan Yunstaff editorHarmony considers rollback after suspected exploit inflates ONE
supplyLatest NewsPublishedAug 12, 2026Harmony is working with exchanges to freeze funds and is preparing a patch after
claims that 2.8 billion unauthorized ONE hit trading platforms.Harmony is considering rolling back its blockchain after
claims that an attacker exploited the network to mint nearly 4 billion ONE tokens, equivalent to about 26% of the
token’s supply.On Tuesday, Harmony said it was working with exchanges to stop and freeze funds. The layer-1 blockchain
said it was preparing a patch and evaluating rollback options. It did not confirm the cause, the number of tokens
created or the amount sent to exchanges. Cointelegraph contacted Harmony for comment but had not received a response by
publication. Harmony’s post was in response to an X account called “Juiceberg,” which claimed the unauthorized
ONE tokens were minted through empty blocks and that approximately 2.8 billion tokens were quickly funneled to exchanges
as ONE’s price fell. Juiceberg estimated the attacker had about 115 million ONE remaining onchain, or 2.9% of the
amount allegedly minted, with the remainder either sold or held in exchange deposit wallets. Cointelegraph could not
independently verify the claims. At the time of writing, CoinGecko showed ONE fell 33.9% over the past 24 hours. The
incident follows Harmony’s June 2022 Horizon Bridge hack, which led to the theft of about $100 million in
cryptocurrency. The FBI later attributed the attack to North Korea’s Lazarus Group. Related: Coldcard hack losses:
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