{"id":76810,"date":"2023-04-06T17:15:50","date_gmt":"2023-04-06T14:15:50","guid":{"rendered":"https:\/\/forklog.com\/en\/?p=76810"},"modified":"2025-09-10T19:33:32","modified_gmt":"2025-09-10T16:33:32","slug":"hacker-who-breached-sentiment-returns-870000-to-the-protocol","status":"publish","type":"post","link":"https:\/\/u1f987.com\/en\/hacker-who-breached-sentiment-returns-870000-to-the-protocol\/","title":{"rendered":"Hacker who breached Sentiment returns $870,000 to the protocol"},"content":{"rendered":"<p>The hacker who breached the Sentiment DeFi liquidity protocol has returned 90% of the stolen funds.<\/p>\n<blockquote class=\"twitter-tweet\">\n<p lang=\"en\" dir=\"ltr\">After successful negotiations with the exploiter, 90% of hacked funds have been returned as agreed. A full statement will follow in the coming hours.<\/p>\n<p>\u2014 Sentiment (@sentimentxyz) <a href=\"https:\/\/twitter.com\/sentimentxyz\/status\/1643779654141251584?ref_src=twsrc%5Etfw\">April 6, 2023<\/a><\/p><\/blockquote>\n<p> <script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>The protocol team sent the hacker a <a href=\"https:\/\/arbiscan.io\/tx\/0xb91e4cd5349e1b9c065662d9e959cc65f28813eee6283992c16bcd8064602ac8\">message<\/a> offering a $95,000 reward on condition that the assets were returned by April 6. Otherwise, Sentiment would offer a similar reward for any information about the offender. <\/p>\n<p>The developer behind <a href=\"https:\/\/u1f987.com\/en\/news\/what-is-metamask\">MetaMask<\/a>, Taylor Monahan, tracked the sequence of transactions \u2014 in total the hacker sent to the platform 465.75 ETH (~$870,000 at the time of writing), leaving 51.75 ETH as the reward.<\/p>\n<blockquote class=\"twitter-tweet\">\n<p lang=\"en\" dir=\"ltr\">Oh wow, there it is. Final 51.75 ETH returned and he&#8217;s off into the sunset (or something) ?<a href=\"https:\/\/t.co\/GBB7SclM2P\">https:\/\/t.co\/GBB7SclM2P<\/a> <a href=\"https:\/\/t.co\/8iTytoAqqP\">pic.twitter.com\/8iTytoAqqP<\/a><\/p>\n<p>\u2014 Tay ? ? (@tayvano_) <a href=\"https:\/\/twitter.com\/tayvano_\/status\/1643790434349768705?ref_src=twsrc%5Etfw\">April 6, 2023<\/a><\/p><\/blockquote>\n<p> <script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>On April 5, the attacker <a href=\"https:\/\/u1f987.com\/en\/news\/hacker-extracts-at-least-500000-from-the-sentiment-protocol\">took advantage of a re-entry vulnerability<\/a> on the Balancer platform to execute malicious code. He took <a href=\"https:\/\/u1f987.com\/en\/news\/what-are-flash-loans\">a flash loan<\/a> on Sentiment, manipulating data to overstate the collateral value and withdrew via the Synapse Bridge 536,738.4 USDC on the Arbitrum network <a href=\"https:\/\/u1f987.com\/en\/news\/what-is-arbitrum\">Arbitrum<\/a>.<\/p>\n<p>Later Beosin experts confirmed this, noting that the protocol&#8217;s losses from the attack amounted to about $1 million.<\/p>\n<p>According to <a href=\"https:\/\/defillama.com\/protocol\/sentiment\">DeFi Llama<\/a>, in the wake of the hack the value of assets blocked in Sentiment fell from $10.78 million to $5.27 million. At the time of writing, the figure stood at $3.28 million.<\/p>\n<p>Back in early April, the attacker <a href=\"https:\/\/u1f987.com\/en\/news\/euler-finance-hacker-returns-remaining-31-million-to-the-project\">returned<\/a> almost all of the stolen funds. In total, the hacker withdrew <a href=\"https:\/\/u1f987.com\/en\/news\/euler-finance-hacked-for-196-million\">cryptocurrency worth $196 million<\/a> from the platform.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The attacker who breached the Sentiment DeFi liquidity protocol returned 90% of the stolen funds.<\/p>\n","protected":false},"author":1,"featured_media":76811,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"select":"1","news_style_id":"1","cryptorium_level":"","_short_excerpt_text":"","creation_source":"","_metatest_mainpost_news_update":false,"footnotes":""},"categories":[3],"tags":[1154],"class_list":["post-76810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-and-analysis","tag-crimes"],"aioseo_notices":[],"amp_enabled":true,"views":"18","promo_type":"1","layout_type":"1","short_excerpt":"","is_update":"","_links":{"self":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts\/76810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/comments?post=76810"}],"version-history":[{"count":1,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts\/76810\/revisions"}],"predecessor-version":[{"id":76812,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/posts\/76810\/revisions\/76812"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/media\/76811"}],"wp:attachment":[{"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/media?parent=76810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/categories?post=76810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/u1f987.com\/en\/wp-json\/wp\/v2\/tags?post=76810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}