Verify a decision

{"actor":"system:backfill","investigation_id":"87250164-26de-4bd6-af06-625ed8eb9c1c","kind":"publish","page_slug":"sentiment","published_at":"2026-05-28T15:51:36.900Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Sentiment","sections":[{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://defillama.com/protocol/sentiment","type":"other","url":""},{"credibility":3,"name":"https://itsa-global.medium.com/defi-insight-undercollateralized-lending-with-sentiment-protocol-587166141207","type":"other","url":""},{"credibility":3,"name":"https://cryptorank.io/ico/sentiment","type":"other","url":""},{"credibility":3,"name":"https://candydrops.xyz/en/projects/sentiment","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://quillaudits.medium.com/decoding-sentiment-protocols-1-million-exploit-quillaudits-f36bee77d376","type":"other","url":""},{"credibility":3,"name":"https://beincrypto.com/defi-lending-platform-sentiment-loses-1m-exploit/","type":"other","url":""},{"credibility":3,"name":"https://www.investing.com/news/cryptocurrency-news/liquidity-protocol-sentiment-exploited-for-over-500k-3049036","type":"other","url":""},{"credibility":3,"name":"https://crypto.news/sentiment-defi-platform-losses-1m-to-hacker-on-arbitrum/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://beincrypto.com/defi-trend-sentiment-hacker-returns-90-stolen-funds-exploit/","type":"other","url":""},{"credibility":3,"name":"https://cointelegraph.com/public/index.php/news/sentiment-recovers-870k-after-negotiations-with-the-hacker/amp","type":"other","url":""},{"credibility":3,"name":"https://www.dlnews.com/articles/defi/arbitrum-defi-sentiment-hacker-recovery-bounty/","type":"other","url":""},{"credibility":3,"name":"https://www.dlnews.com/articles/defi/sherlock-defi-insurer-on-edge-euler-hack/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://github.com/sherlock-audit/2023-01-sentiment-judging","type":"other","url":""},{"credibility":3,"name":"https://www.dlnews.com/articles/defi/sherlock-defi-insurer-on-edge-euler-hack/","type":"other","url":""},{"credibility":3,"name":"https://medium.com/rektify-ai/learning-from-the-biggest-defi-hacks-of-2023-1cab753ac4ea","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://defillama.com/protocol/sentiment","type":"other","url":""},{"credibility":3,"name":"https://candydrops.xyz/en/projects/sentiment","type":"other","url":""},{"credibility":3,"name":"https://blog.ezkl.xyz/post/sentiment/","type":"other","url":""}]},{"content":"","heading":"","severity":"medium","sources":[{"credibility":3,"name":"https://itsa-global.medium.com/defi-insight-undercollateralized-lending-with-sentiment-protocol-587166141207","type":"other","url":""},{"credibility":3,"name":"https://quillaudits.medium.com/decoding-sentiment-protocols-1-million-exploit-quillaudits-f36bee77d376","type":"other","url":""},{"credibility":3,"name":"https://zokyo.io/blog/read-only-reentrancy-attacks/","type":"other","url":""}]}],"sources_used":[],"summary":"Sentiment is an undercollateralized DeFi lending protocol originally deployed on Arbitrum, later migrating activity to HyperLiquid L1. On April 4, 2023, the protocol suffered a read-only reentrancy exploit resulting in approximately $1 million in losses, of which 90% was returned by the attacker following a negotiated $95,000 bounty. ZachXBT has flagged the entity for elevated risk; the protocol remains operational with a low TVL of roughly $518,000 as of 2025.","timeline":[{"date":"2022-09-10","event":"Sentiment raises $2.4 million seed round led by Archetype Ventures, with Castle Island Ventures and others participating.","source":""},{"date":"2023-01-01","event":"Sherlock audit of Sentiment protocol completed; audit judging repository published on GitHub.","source":""},{"date":"2023-04-04","event":"Read-only reentrancy exploit executed on Arbitrum via Balancer integration. Approximately $1 million drained. Sentiment pauses main contract at 18:00 UTC.","source":""},{"date":"2023-04-05","event":"Sentiment team publicly offers $95,000 bounty to attacker with deadline of April 6, 08:00 UTC. Engages PeckShield and law enforcement.","source":""},{"date":"2023-04-06","event":"Attacker returns approximately 90% of stolen funds (~$900,000) after negotiation. Protocol announced 90% recovery.","source":""},{"date":"2023-04-07","event":"Sherlock insurance pays approximately $50,000 to cover a portion of the remaining unrecovered losses.","source":""},{"date":"2023-04-08","event":"Sentiment announces 100% fund recovery and full protocol solvency restoration.","source":""},{"date":"2023-04-11","event":"Sentiment publishes official post-mortem detailing the exploit mechanics and remediation steps.","source":""},{"date":"2025-02-24","event":"Sentiment completes a public token sale raising $1 million, bringing total disclosed funding to $3.4 million. Protocol operating on HyperLiquid L1.","source":""}]},"v":1}