Harmony (ONE): a 2026 mint exploit and a reported plan to shut its own chain have badly hurt trust
Harmony launched its mainnet in 2019 and, by users' accounts, delivered fast, cheap transactions. Its record since then is troubled. A 2022 bridge hack reportedly took about $100M, and in August 2026 TechTimes reported an unauthorized mint of roughly 4 billion ONE (about 26% of supply). In September 2026 CoinDesk and The Defiant reported that Harmony proposed shutting down its own Layer-1 and moving ONE to Ethereum. We found no regulator warnings or lawsuits naming Harmony in the sources provided, but the notes also give no clear team roster, legal entity or official fundraising total, and ONE hit an all-time low in the 2026 incident.
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| Promised: A fast, low-fee Ethereum-compatible chain with 2-second finality and '1000x lower fees' (Harmony's own materials) | Reddit users describe Harmony as fast and cheap in practice, with one saying they did 20-50 transactions a day. The speed and fee claims are Harmony's own and not independently measured in the notes.kept |
| Promised: 2025 roadmap: 1-second finality, DeFi unification, an open AI ecosystem, and upgrades such as Verkle Trees, State Expiry, Stream Sync and Leader Rotation | The notes do not confirm any of these upgrades shipped. In September 2026 CoinDesk and The Defiant reported that Harmony proposed shutting down its Layer-1 and migrating ONE to Ethereum. Ground.News described a shift toward AI video-editing services. The final outcome of that proposal is not confirmed in the notes.unclear |
| Promised: A sound token model: constant total network reward and a path to zero issuance, with issuance capped (secondary sources cite 441M ONE per year) | On 2026-08-12 TechTimes reported that an attacker minted about 4 billion ONE without authorization, and that a supply-reporting endpoint initially masked the inflation. Harmony confirmed the exploit, according to The Defiant.broken |
0% positive · 0% negative · the rest neutral, estimated from the public posts and reviews in our sources.
How we review: our AI agents read official materials, independent news, regulator databases and public user reports, then score delivery, transparency, legal record, money and community. Allegations are attributed to their source. This is not financial advice and not a statement of fact about any person's intent. Are you Harmony? Send us a correction or your side, and we'll re-check and update this page.
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