DeFi Rekt Report October 2025: $38.6 Million Lost Across 9 Exploits
October 2025 saw a total of $38.63 million lost across nine distinct security incidents in both centralized and decentralized platforms.
“De.Fi Safe is a crucial addition to the web3 ecosystem,” said Yida Gao, Founder & Managing General Partner at Shima Capital, a lead investor in De.Fi. “As the first cross-chain decentralized security network, De.Fi is a much needed project for the overall safety of crypto users, and De.Fi Safe takes user safety to the next level by providing personalized risk audits directly from their wallets based on the smart contracts they interact with. That’s groundbreaking!”
1. TL;DR — Key Points
2. Foreword
3. Introduction to the Crypto’s First Antivirus
4. How to Use the De.Fi Scanner on Kava EVM
5. Deep diving into the tokens’ security and liquidity analysis
6. How to Use the De.Fi Shield on Kava EVM
7. Free Security Bible
The Inventor of Crypto’s First Antivirus, De.Fi, has merged its revolutionary security solutions with the Kava EVM Blockchain, an EVM-compatible execution environment that empowers Solidity developers and their dApps to benefit from the scalability and security of the Kava Network. The Launch of De.Fi’s Crypto’s First Antivirus is the result of 2 years of development and comprehensive analysis of more than 12 million smart contract vulnerabilities on more than 1.15 million transactions, and is the most sophisticated and complete security tool for anyone transacting in Web3.
Powered by machine learning algorithms and trained by smart contract auditors over the past two years, De.Fi Antivirus can identify and inform users of potential malicious exploits and vulnerabilities they might be exposed to. De.Fi’s security suite of digital asset management tools is already trusted by researchers at companies like Coingecko, as well as academic institutions such as the University of London, the National University of Singapore, and many others.
The novel Crypto Antivirus suite features innovative security tools, such as the De.Fi Scanner, a multi layer security solution that is capable of performing a comprehensive technical audit and liquidity analysis of any token in just a few seconds. In addition, the De.Fi Shield automatically scans the user’s wallet for high risk tokens and approvals. Shield automatically identifies all high risk tokens and smart contracts that a user has in his wallet and provides a detailed description of the potential risk.
The novel Crypto Antivirus suite features innovative security tools, such as the De.Fi Scanner, a multi layer security solution that is capable of performing a comprehensive technical audit and liquidity analysis of any token in just a few seconds.
In addition, the De.Fi Shield automatically scans the user’s wallet for high risk tokens and approvals. Shield automatically identifies all high risk tokens and smart contracts that a user has in his wallet and provides a detailed description of the potential risk.
](https://de.fi/blog/wp-content/uploads/2023/06/1-5_miToxZ-6iikTZLSv3KA.png)
](https://de.fi/blog/wp-content/uploads/2023/06/1zZDiWteGofd6VDIMNmN6Qg.png)
The De.Fi Scanner is an easy-to-use tool designed to help users assess the security of smart contracts in the DeFi space.
To use the scanner, simply enter the contract address in the search bar and wait a few minutes for the scan to complete.

Once the scan is complete, the results will be shown in an easy-to-read, user-friendly layout, highlighting any risks associated with the smart contract.
](https://de.fi/blog/wp-content/uploads/2023/06/1gpuaHClq5Y1o8hhcKahKcQ.png)
These risks could range from minor issues that can be easily resolved to major security vulnerabilities that could put user funds at risk. By using the De.Fi Scanner, users can quickly and conveniently assess the safety of interacting with a smart contract, enabling them to make informed decisions and stay safe in the fast-paced and ever-changing world of DeFi.
If you are a developer and want to browse the exact smart contract part which causes a certain vulnerability, you can extend the issue warning window and browse its coded part:
You can also browse the results of the comprehensive tokens’ distribution and liquidity analysis on the right side of the De.Fi Scanner!
](https://de.fi/blog/wp-content/uploads/2023/06/1U-OeT1xiLI1Fq4tLjWKy3A.png)
De.Fi Shield automatically scans the user’s wallet for high risk tokens and approvals. Shield automatically identifies all high risk tokens and smart contracts that a user has in his wallet and provides a detailed description of the potential risk.
The shield is capable of identifying all high-risk tokens / smart contracts that user has under his wallet in just a few seconds after + and providing a detailed description to each risk:
• Shield automatically scans ALL tokens (and approvals) in your wallet;
• And notifies you if there are any high-risk ones!
Never get REKT Again!

Right now we are GIVING AWAY free copies of the Security Bible — the most comprehensive DeFi Security Guide brought to you by the De.Fi Team!
](https://de.fi/blog/wp-content/uploads/2023/06/0gM8Ql8Jnk_xjby1U.png)
October 2025 saw a total of $38.63 million lost across nine distinct security incidents in both centralized and decentralized platforms.
The third quarter of 2025 marked yet another turbulent period for the DeFi and wider crypto ecosystem, with $434,124,000 lost to exploits, scams, and security failures across both centralized and decentralized platforms.
June 2025 witnessed another alarming month for Web3 security, with a total of $114,768,000 lost during 11 separate attacks
May 2025 saw both DeFi and CeFi security once again under attack, with $275,953,000 lost across just 8 recorded incidents
April 2025 witnessed a large escalation in exploit volume and value, with a massive $5,919,684,000 being stolen in 10 confirmed events.
Q1 2025 marked one of the worst quarters in blockchain exploit history, with total recorded losses topping $2,052,584,700 across 37 incidents
© De.Fi. All rights reserved.