Verify a decision

{"actor":"system:backfill","investigation_id":"e62d5064-babc-4523-958a-95103ace35a9","kind":"publish","page_slug":"uwu-lend","published_at":"2026-05-20T04:21:59.826Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"UwU Lend","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://exponential.fi/protocols/uwu/bdf71040-0a05-48ee-a50b-87b7b621c852"},{"credibility":3,"name":"","type":"other","url":"https://etherscan.io/token/0x55C08ca52497e2f1534B59E2917BF524D4765257"},{"credibility":3,"name":"","type":"other","url":"https://medium.com/uwu-lend/part-two-uwu-lend-84e14ee58b76"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://slowmist.medium.com/analysis-of-the-uwu-lend-hack-9502b2c06dbe"},{"credibility":3,"name":"","type":"other","url":"https://unchainedcrypto.com/uwu-lend-hacker-steals-another-3-7-million-from-protocol/"},{"credibility":3,"name":"","type":"other","url":"https://cryptonews.com/news/uwu-lend-reacts-to-23-million-hack-pauses-protocol-and-negotiates-with-hacker/"},{"credibility":3,"name":"","type":"other","url":"https://www.quillaudits.com/blog/hack-analysis/uwu-lend-hack"},{"credibility":3,"name":"","type":"other","url":"https://cryptoslate.com/hacker-drains-19-5-million-from-uwu-lend-in-price-oracle-exploit/"},{"credibility":3,"name":"","type":"other","url":"https://unchainedcrypto.com/0xsifu-offers-20-bounty-to-hackers-after-19-million-uwu-lend-exploit/"},{"credibility":3,"name":"","type":"other","url":"https://cointelegraph.com/news/uwu-lend-hack-20-million"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://etherscan.io/address/0x841ddf093f5188989fa1524e7b893de64b421f47"},{"credibility":3,"name":"","type":"other","url":"https://slowmist.medium.com/analysis-of-the-uwu-lend-hack-9502b2c06dbe"},{"credibility":3,"name":"","type":"other","url":"https://www.chaincatcher.com/en/article/2129245"},{"credibility":3,"name":"","type":"other","url":"https://www.merklescience.com/blog/investigating-the-uwu-lend-hack-and-flow-of-funds"},{"credibility":3,"name":"","type":"other","url":"https://bitcoinworld.co.in/uwu-lend-exploiter-launders-eth/"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://en.wikipedia.org/wiki/Michael_Patryn"},{"credibility":3,"name":"","type":"other","url":"https://www.coindesk.com/markets/2022/01/27/wonderland-rattled-after-cofounder-tied-to-alleged-quadrigacx-190m-exit-scam"},{"credibility":3,"name":"","type":"other","url":"https://www.dlnews.com/articles/defi/uwu-founder-offers-bounty-to-settle-flash-loan-exploit/"},{"credibility":3,"name":"","type":"other","url":"https://protos.com/sifus-uwu-lend-reportedly-hacked-for-20m-curves-egorov-among-affected/"},{"credibility":3,"name":"","type":"other","url":"https://beincrypto.com/wonderland-cfo-outed-as-ex-convict-and-quadrigacx-co-founder-michael-patryn-steps-down/"},{"credibility":3,"name":"","type":"other","url":"https://watcher.guru/news/crypto-scandal-defi-project-wonderland-is-run-by-felon-michael-patryn-with-ties-to-quadrigacx-fraud"}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"","type":"other","url":"https://cyvers.ai/blog/uwu-lend-23m-exploit-oracle-vulnerabilities-exposed"},{"credibility":3,"name":"","type":"other","url":"https://www.quillaudits.com/blog/hack-analysis/uwu-lend-hack"},{"credibility":3,"name":"","type":"other","url":"https://exponential.fi/protocols/uwu/bdf71040-0a05-48ee-a50b-87b7b621c852"},{"credibility":3,"name":"","type":"other","url":"https://cryptobriefing.com/uwu-lend-second-hack-update/"},{"credibility":3,"name":"","type":"other","url":"https://en.wikipedia.org/wiki/Michael_Patryn"}]}],"sources_used":[],"summary":"UwU Lend is an Ethereum-based DeFi lending protocol forked from Aave V2, launched in September 2022 and operated by Michael Patryn (known pseudonymously as 0xSifu), a co-founder of the collapsed Canadian crypto exchange QuadrigaCX and a convicted felon. In June 2024, the protocol was exploited twice by the same attacker — first for approximately $19.3 million on June 10 and again for $3.7 million on June 13 — via oracle price manipulation using flash loans, bringing combined losses to approximately $23 million.","timeline":[{"date":"2022-01-27","event":"ZachXBT publicly identifies 0xSifu as Michael Patryn, co-founder of QuadrigaCX; Wonderland community votes to remove him from treasury management role","source":""},{"date":"2022-02-01","event":"Patryn returns to Wonderland following an informal community vote","source":""},{"date":"2022-09-01","event":"UwU Lend launches on Ethereum mainnet, forked from Aave V2, founded by Michael Patryn (0xSifu)","source":""},{"date":"2024-06-10","event":"First exploit: Attacker (0x841ddf093f5188989fa1524e7b893de64b421f47) manipulates UwU Lend's sUSDe oracle via Curve Finance spot prices using a ~$3.796 billion flash loan, draining approximately $19.3 million in ETH, crvUSD, bLUSD, and USDC; protocol paused by team","source":""},{"date":"2024-06-11","event":"Michael Patryn (0xSifu) offers the attacker a 20% bounty (approximately $4 million) to return stolen funds; team announces vulnerability patched","source":""},{"date":"2024-06-13","event":"Second exploit: Same attacker uses residual sUSDe collateral from first hack to drain uDAI, uWETH, uLUSD, uFRAX, uCRVUSD, and uUSDT pools for an additional $3.7 million; combined losses reach approximately $23 million","source":""},{"date":"2024-06-14","event":"Protocol reports repayment of approximately $9.7 million in bad debt; attacker does not return funds","source":""},{"date":"2024-06-15","event":"Attacker transfers approximately 1,000 ETH (roughly $3.66 million) to Tornado Cash in initial laundering tranche","source":""},{"date":"2024-10-09","event":"Linked attacker address launders an additional 2,009 ETH through Tornado Cash; total laundered by associated addresses reaches approximately 6,353 ETH","source":""}]},"v":1}