Security

The Lazarus Group is a hacking organization associated with the North Korean government. Since its activity in cyberspace began in 2009, it has been suspected of numerous major cyberattacks, including the 2016 theft from the Central Bank of Bangladesh and the 2022 attack on the Ronin Network, resulting in the theft of billions of dollars.

A Ring Signature is a digital signature in which a transaction is signed on behalf of a group. This makes it computationally infeasible to determine which group member created the signature. Ring signatures are used in privacy-focused cryptocurrencies like Monero to hide the sender's identity.

This article introduces the concept of Regenerative Finance (ReFi), its market potential, application scenarios, operational mechanisms, and noteworthy projects. It also compares ReFi with DeFi, exploring its future development trends and potential risks.

Nillion has always been dedicated to the field of data privacy and security. With its innovative "blind computation" concept and a comprehensive set of application development tools, it enables developers to easily and efficiently build privacy-enhancing applications, supporting a wide range of use cases, including AI, DeFi, Social, gaming, and healthcare.

This article delves into the top 10 most shocking crypto hacks in history. We will explore notorious hacker groups, common attack methods, and sophisticated money laundering techniques used in the crypto world. Additionally, we will compare traditional hacking vs. crypto hacking and provide valuable security tips to help investors avoid potential risks.

Front-running in crypto exploits pending transactions for profit, capitalizing on blockchain transparency. Learn how traders, bots, and validators manipulate transaction ordering, the impact on Decentralized Finance, and the possible ways of protecting your transactions.

CertiK is a leading Web3 security firm specializing in smart contract audits, blockchain security, and compliance solutions. It offers services such as code audits, blockchain L1/L2 audits, wallet security, penetration testing, and risk management.

Explore how Hinkal Protocol brings privacy to decentralized finance through zero-knowledge proofs, stealth addresses, and self-custodial private wallets. Learn how institutions and individuals can transact, trade, and yield farm privately on EVM chains.

A wrench attack is the physical targeting of cryptocurrency holders to unlawfully obtain possession and ownership of their assets through physical force or threat of harm.

This article will use Optimism's fraud proof solution as a reference to analyze its approach based on the MIPS virtual machine and interactive fraud proofs, as well as the main idea behind ZK-based fraud proofs.

Gate Research report indicates: In February 2025, the Web3 industry experienced 15 security incidents with total losses of $1.676 billion—a significant increase from the previous month. These incidents primarily involved contract vulnerabilities and account hacks, accounting for 53.3% of total losses in the crypto industry. Most losses occurred on the BSC blockchain. Major incidents included the Bybit exchange wallet theft, Infini's lack of strict permission controls, and ionic falling victim to a social engineering attack.

The cryptocurrency industry is experiencing an unprecedented security crisis, marked by frequent and devastating hacker attacks that have eroded trust in the industry. This article examines recent high-profile hacking incidents, such as the $1.46 billion theft from Bybit, along with historical cases, to uncover the various factors driving these attacks, including technical flaws, human vulnerabilities, economic incentives, and regulatory gaps.

In this decentralized digital world, everyone is responsible for safeguarding their own assets and acting as the first line of defense against risks. We can’t rely on others, but we can rely on rules and common sense. Always remember: Never share your mnemonic phrase.

This article explores OP_VAULT, a Bitcoin feature designed to enhance security by safeguarding funds from loss or unauthorized access. As Bitcoin adoption grows, OP_VAULT introduces "covenants," which let users establish predetermined guidelines for how their cryptocurrency can be used. This feature adds both security and flexibility for protecting digital assets.

This article explores the impact of the recent hack on Aave, Ethena, and USDe, analyzes how DeFi systems responded to the event, and examines whether Proof of Reserves could prevent over $20 million in liquidations.