Security

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.

We can't just shift to a world where only web3 exists without sharing anything. No, we still need to share, but only what's necessary.

This article examines the "lemon problem" in crypto—where users can't easily tell good projects from bad ones, creating a trust crisis in the ecosystem. It suggests using Zero-Knowledge Proof (ZK) technology for self-regulation, building trust and social consensus while keeping the system permissionless. This approach would let the crypto ecosystem develop robust security measures, much like the casino industry has done, ultimately turning "lemons" into "peaches" and making crypto an essential part of economic life.

We the Cypherpunks are dedicated to building anonymous systems. We are defending our privacy with cryptography, with anonymous mail forwarding systems, with digital signatures, and with electronic money.

Gate Research's report points out that in January 2025, the Web3 industry experienced 40 security incidents, resulting in approximately $87.94 million in losses, a significant increase compared to the previous month. Account breaches were the primary threat, accounting for 52% of the total losses. Major incidents included a hacker attack on the Phemex exchange, a significant security vulnerability affecting NoOnes, and a private key leak at Moby. These incidents exposed key risks in smart contracts and cross-chain protocols, highlighting the need for stronger contract audits, the introduction of real-time monitoring, and multi-layered defense mechanisms to improve platform security and enhance user trust.

This article explores how to leverage technologies such as ZKP, zkTLS, TEE, and FHE to protect data privacy and ensure data verifiability and trustworthiness in the rapidly evolving landscape of AI and blockchain development.