LeetSwap
Last changed 2026-11-08 · Fact-check review — Fact-check review (verdict: revise): the reviewer checked the page's claims against its sources; the trust score was recalculated from the page's findings, 52 → 58. Version history →
Why this score
| Every page starts at | 65 |
| Concerns that are not fraud | -3.2 |
| Incidents it suffered (e.g. hacks) | -3.2 |
| Problems around it, caused by others | -0.8 |
| Sum | 58 |
- 4 sections set aside: the claims did not hold up in a fact-check, pending correction.
Score: 58/100 (kept between 0 and 100)
How scoring works →Page reliability: Fact-checked 2026-11-08 · 3 of 9 claims confirmed · 4 need better sources · 2 disputed
anchored·5xWoda…nv2RSummary
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.
Connected Entities
8 entities · 60 linked investigations- Wintermute→mentioned with→ZachXBT(60%)
- Linea→mentioned with→Uniswap(60%)
- LeetSwap→mentioned with→Coinbase(70%)
- LeetSwap→mentioned with→Wintermute(65%)
- LeetSwap→mentioned with→Uniswap(60%)
- LeetSwap→mentioned with→ZachXBT(70%)
- LeetSwap→mentioned with→Base(70%)
- LeetSwap→mentioned with→Linea(60%)
- Cointelegraph→mentioned with→ZachXBT(70%)
- Coinbase→mentioned with→Base(70%)
- + 4 more
Timeline(12 events)
February 2023
LeetSwap contracts initially built and deployed on Canto blockchain during a monthly hackathon.
13 July 2023
Coinbase opens Base mainnet to builders; LeetSwap deploys on Base and begins accumulating TVL.
30 July 2023
BALD memecoin rug pull on Base drains approximately $12.5 million in ETH liquidity, setting a turbulent backdrop for the Base ecosystem.
31 July 2023
LeetSwap reaches peak TVL of approximately $41.2 million, holding position as Base's largest DEX.
August 2023
Attacker exploits the publicly exposed `_transferFeesSupportingTaxTokens()` function in LeetSwapV2Pair contract, draining approximately 342 ETH (~$630,000) from multiple liquidity pools.
August 2023
LeetSwap halts all trading and activates the Solidly-inherited factory security pause function.
August 2023
PeckShield, CertiK, Beosin, and BlockSec confirm the exploit on-chain. Wintermute research head Igor Igamberdiev publicly attributes the drain to the exposed function.
August 2023
LeetSwap TVL collapses from $41.2 million to approximately $7.17 million, an 83% decline.
August 2023
ZachXBT publicly flags LeetSwap and comments on the exploit via social media.
August 2023
LeetSwap posts public message requesting attacker return all funds except 50 ETH (~$92,000).
4 August 2023
LeetSwap publicly denies fake airdrop announcements circulating on social media following the exploit.
9 August 2023
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.
Decision Log
- slot 466746799 · hash 2D5odP9rQ1jhYewSWuhF5ZV7kCNhKjU6yiQy8JTnSCBn
- slot 466746791 · hash 747xruWMxq9aGRv65kAZh6MnffrfyyJX6xjGbhw2HThA
- slot 466746784 · hash D7YsJS82uQki5QirpvDzdxvrr4iuSficxRuFkV8rYhDb
- slot 455365430 · hash 7dpD5ZWRGTtL9hTaAexdbYUD2nZZwMDsaDwdY4tkbFPC
- slot 423150319 · hash CURXkSAdRuu7MV5cmaFj3jQeLSjDCarxKYk2wQ6ZCJ7V
This investigation is cryptographically anchored to the Solana blockchain (5 decisions). 13 of 18 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-6
generated: 5/4/2026, 2:54:39 AM
last updated: 11/8/2026, 2:26:31 AM
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