Audit log

Every state-changing event for LeetSwap: moderation decisions on community submissions, plus corrections and updates from the news pipeline. URL-based decisions are designed to carry three independent witnesses — the original source, an Internet Archive snapshot, and a Solana memo signed by our publicly-disclosed publisher key. Archive coverage is still being backfilled, so each decision below reports its own snapshot status rather than assuming one exists.

1. #1publishby system:backfill

   2026-05-30 11:48:09Z
   Score: ? → ? (no score change)
   anchoranchored

   chain

   ●mainnet-betaslot 423,150,319

   sig

   5xWoda3iCTRQ…HYQsnv2Rcopyexplorer ↗

   hash

   CURXkSAdRuu7…wQ6ZCJ7Vcopysha256 → base58

   verifying row…full verify ↗

   canonical bytes (7042 B) ▸

   {"actor":"system:backfill","investigation_id":"547094dd-3713-4604-b614-a86072c27462","kind":"publish","page_slug":"leetswap","published_at":"2026-05-30T11:48:09.963Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"LeetSwap","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.coindesk.com/business/2023/08/01/leetswap-halts-trading-after-630k-drained-from-liquidity-pairs","type":"other","url":""},{"credibility":3,"name":"https://decrypt.co/150826/leetswap-dex-pauses-trading-base-due-potential-exploit","type":"other","url":""},{"credibility":3,"name":"https://docs.leetswap.finance/products/leetswap-v2-dex/","type":"other","url":""},{"credibility":3,"name":"https://defillama.com/protocol/leetswap","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://medium.com/coinmonks/leetswap-hack-analysis-81323527b3f7","type":"other","url":""},{"credibility":3,"name":"https://coinedition.com/exploit-on-leetswap-leads-to-loss-of-624k-due-to-price-manipulation/","type":"other","url":""},{"credibility":3,"name":"https://beincrypto.com/leetswap-exploit-steals-eth-smart-contract-bug/","type":"other","url":""},{"credibility":3,"name":"https://www.coindesk.com/business/2023/08/01/leetswap-halts-trading-after-630k-drained-from-liquidity-pairs","type":"other","url":""},{"credibility":3,"name":"https://bitcoinist.com/base-dex-leetswap-stops-trading-cites-exploit/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.coindesk.com/business/2023/08/01/leetswap-halts-trading-after-630k-drained-from-liquidity-pairs","type":"other","url":""},{"credibility":3,"name":"https://insidebitcoins.com/news/bases-leetswap-dex-halts-trading-following-a-630k-exploit-from-liquidity-pools","type":"other","url":""},{"credibility":3,"name":"https://www.web3isgoinggreat.com/?id=leetswap-exploit","type":"other","url":""},{"credibility":3,"name":"https://www.chaincatcher.com/en/article/2098625","type":"other","url":""},{"credibility":3,"name":"https://www.binance.com/en/square/post/2023-08-04-leetswap-debunks-fake-airdrop-news-and-reviews-withdrawal-applications-909894","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://medium.com/coinmonks/leetswap-hack-analysis-81323527b3f7","type":"other","url":""},{"credibility":3,"name":"https://coinedition.com/exploit-on-leetswap-leads-to-loss-of-624k-due-to-price-manipulation/","type":"other","url":""},{"credibility":3,"name":"https://github.com/LeetSwap/leet-aggregator","type":"other","url":""},{"credibility":3,"name":"https://beincrypto.com/leetswap-exploit-steals-eth-smart-contract-bug/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://bitcoinist.com/base-dex-leetswap-stops-trading-cites-exploit/","type":"other","url":""},{"credibility":3,"name":"https://www.theblock.co/post/242402/leetswap-bases-leading-dex-halts-trading-amid-reports-of-an-exploit","type":"other","url":""},{"credibility":3,"name":"https://decrypt.co/150826/leetswap-dex-pauses-trading-base-due-potential-exploit","type":"other","url":""},{"credibility":3,"name":"https://www.web3isgoinggreat.com/?id=leetswap-exploit","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://defillama.com/protocol/leetswap","type":"other","url":""},{"credibility":3,"name":"https://www.coincarp.com/currencies/leetswap/","type":"other","url":""},{"credibility":3,"name":"https://whattofarm.io/tokens/leetswap-linea-leet","type":"other","url":""},{"credibility":3,"name":"https://www.bitget.com/price/leetswap","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://www.coindesk.com/business/2023/08/01/leetswap-halts-trading-after-630k-drained-from-liquidity-pairs","type":"other","url":""},{"credibility":3,"name":"https://bitcoinist.com/base-dex-leetswap-stops-trading-cites-exploit/","type":"other","url":""},{"credibility":3,"name":"https://www.web3isgoinggreat.com/?id=leetswap-exploit","type":"other","url":""},{"credibility":3,"name":"https://cryptozombies.io/videos/en/2023-08-04-crypto-news-for-curve-liquidation-bald-leetswap-consensys","type":"other","url":""}]}],"sources_used":[],"summary":"LeetSwap was a decentralized exchange (DEX) launched on Coinbase's Base Layer 2 network in mid-2023 and briefly held the position of the network's largest DEX by trading volume and total value locked. On August 1, 2023, shortly after Base's mainnet opened to all users, an attacker exploited a publicly exposed smart contract function to drain approximately 342 ETH (~$630,000) from multiple liquidity pools. The protocol halted trading, partially recovered funds through white-hat rescue operations, and has since operated at a fraction of its pre-exploit TVL, with no public audit ever confirmed prior to the incident.","timeline":[{"date":"2023-02-01","event":"LeetSwap contracts initially built and deployed on Canto blockchain during a monthly hackathon.","source":""},{"date":"2023-07-13","event":"Coinbase opens Base mainnet to builders; LeetSwap deploys on Base and begins accumulating TVL.","source":""},{"date":"2023-07-30","event":"BALD memecoin rug pull on Base drains approximately $12.5 million in ETH liquidity, setting a turbulent backdrop for the Base ecosystem.","source":""},{"date":"2023-07-31","event":"LeetSwap reaches peak TVL of approximately $41.2 million, holding position as Base's largest DEX.","source":""},{"date":"2023-08-01","event":"Attacker exploits the publicly exposed `_transferFeesSupportingTaxTokens()` function in LeetSwapV2Pair contract, draining approximately 342 ETH (~$630,000) from multiple liquidity pools.","source":""},{"date":"2023-08-01","event":"LeetSwap halts all trading and activates the Solidly-inherited factory security pause function.","source":""},{"date":"2023-08-01","event":"PeckShield, CertiK, Beosin, and BlockSec confirm the exploit on-chain. Wintermute research head Igor Igamberdiev publicly attributes the drain to the exposed function.","source":""},{"date":"2023-08-01","event":"LeetSwap TVL collapses from $41.2 million to approximately $7.17 million, an 83% decline.","source":""},{"date":"2023-08-01","event":"ZachXBT publicly flags LeetSwap and comments on the exploit via social media.","source":""},{"date":"2023-08-01","event":"LeetSwap posts public message requesting attacker return all funds except 50 ETH (~$92,000).","source":""},{"date":"2023-08-04","event":"LeetSwap publicly denies fake airdrop announcements circulating on social media following the exploit.","source":""},{"date":"2023-08-09","event":"Base network opens to all public users. LeetSwap's white-hat recovery operations yield 314 ETH from at-risk pools for distribution to liquidity providers.","source":""}]},"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 9ef8813e-23a9-4bd7-bbd2-c63eb04310aecopy
2. #2rescoreby systemsystem

   2026-10-10 18:45:44Z
   Score: 32 → 52 (+20)
   Rescored under Scoring v2, the published formula (avoid.net/scoring): 32 → 52. Problems weighed by who is responsible: incidents the subject suffered −6.4, problems around the subject, caused by others −3.2, concerns that are not fraud −3.2.
   anchoranchored

   chain

   ●mainnet-betaslot 455,365,430

   sig

   2gu7BXUCG95j…9tvdnYeVcopyexplorer ↗

   hash

   7dpD5ZWRGTtL…Y4tkbFPCcopysha256 → base58

   verifying row…full verify ↗

   canonical bytes (604 B) ▸

   {"actor":"system","decided_at":"2026-10-10T18:45:43.975Z","decision":"rescore","investigation_id":"547094dd-3713-4604-b614-a86072c27462","new_score":52,"page_slug":"leetswap","prev_score":32,"reason":"Rescored under Scoring v2, the published formula (avoid.net/scoring): 32 → 52. Problems weighed by who is responsible: incidents the subject suffered −6.4, problems around the subject, caused by others −3.2, concerns that are not fraud −3.2.","score_delta":20,"score_model":"v2","sequence_num":2,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 58a8dce5-195d-4fcf-9ac2-cfa365037684copy