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  "map_content": "If you want, I can add links to sources or tailor this list by \u201crealized\u201d vs. \u201cheadline\u201d losses.",
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  "map_content": "2) Ronin Network (Axie Infinity) bridge \u2014 Mar 2022 \u2014 \u2248$625M\n   - 173,600 ETH + 25.5M USDC via validator key compromise. One of the most damaging bridge exploits.",
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  "map_content": "\u2014",
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  "map_content": "4) BNB Chain \u201cToken Hub\u201d bridge \u2014 Oct 2022 \u2014 \u2248$570M (notional)\n   - Attacker minted ~2M BNB; much was frozen, so realized gains were far lower, but headline loss is ~$570M.",
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  "map_content": "3) Poly Network \u2014 Aug 2021 \u2014 \u2248$610M\n   - Cross-chain smart contract exploit. Notably, the attacker returned almost all funds.",
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  "map_content": "**Five biggest crypto heists (by value at the time of theft)**",
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  "map_content": "Also very large: FTX post-bankruptcy wallet drain (Nov 2022, \u2248$400\u2013$477M), Wormhole bridge (Feb 2022, \u2248$325M), KuCoin (Sep 2020, \u2248$275M), DMM Bitcoin (May 2024, 4,502 BTC \u2248$300M at the time).",
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  "map_content": "5) Coincheck (Japan) \u2014 Jan 2018 \u2014 \u2248$530M\n   - Hot wallet hack of NEM (XEM). The exchange later reimbursed customers.",
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  "map_content": "**What about \u201chijacking Bitcoin\u201d?**\n- The Bitcoin protocol itself has not been \u201chijacked.\u201d The biggest losses in crypto come from exchange/wallet breaches and bridge/smart-contract exploits\u2014not from breaking Bitcoin\u2019s core consensus.\n- A 51% (majority hash-rate) attack on Bitcoin would be extraordinarily expensive and difficult. Even then, it cannot steal others\u2019 coins or change the 21M supply; it could at most censor transactions or attempt short-term double-spends of the attacker\u2019s own funds.\n- More realistic risks for users are off-chain and endpoint issues: exchange hacks, wallet malware, phishing/SIM swaps, and occasional network-level tricks (e.g., node eclipse/BGP routing attacks). These don\u2019t \u201chijack Bitcoin,\u201d but can compromise users or infrastructure around it.",
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