Security

Bitcoin ATMs are one of the most convenient ways to buy and sell Bitcoin. Such machines resemble standard ATMs, where users can exchange cash for Bitcoin and vice versa. But not all Bitcoin ATMs are compliant.

As the Web3 sector continues to develop globally, blockchain security issues are becoming increasingly prominent. Ensuring the safety of users' and enterprises' digital assets, facilitating secure transactions, and effectively preventing cyberattacks have become key areas of concern. This article will review the top ten crypto security companies for user reference.

This article analyzes custody rules and regulatory trends across different regions through the lens of the SEC's charges against Galois Capital. The U.S. requires qualified custodians to hold clients' crypto assets, while Hong Kong and Singapore have similar regulations, emphasizing the importance of anti-money laundering, asset segregation, and security measures.

Governance attacks pose a significant security risk in decentralized blockchain governance. This article examines the governance attack on Compound, detailing its methods, the short- and long-term risks involved, and how technical improvements and community efforts can help mitigate these challenges. It also discusses prevention strategies and highlights the lasting impact of governance attacks on DeFi protocols and the broader ecosystem, enabling the industry to better prepare for future governance threats.

This article explores the security risks involved in using crypto wallets, focusing particularly on phishing attacks that exploit Permit, Uniswap Permit2, and other methods of signing authorizations.

In order to strengthen supervision, in July 2024, Turkey passed the "Amendment of the Capital Market Law", establishing a preliminary regulatory framework for crypto asset service providers (CASPs), including authorization by the Turkish Capital Market Commission (CMB), Monitoring and Sanctions. This amendment also clarifies the severe penalties for unauthorized operation of encryption businesses, laying the foundation for the standardization and compliance development of the market. It is expected to attract more compliant companies to participate and promote the further maturity and growth of the Turkish encryption market.

The Bitcoin network is the most valuable decentralized network, and many BTCFi projects, including Babylon, have the potential to transform it into the foundational layer of the entire crypto industry, bringing new possibilities to the Bitcoin ecosystem.

Gavin has recently focused on the issue of Sybil attacks (civil resistance). This article revisits Dr. Gavin Wood's keynote speech at Polkadot Decoded 2024, exploring some of his insights on preventing Sybil attacks.

Gitcoin Passport is a decentralized identity verification tool that integrates Web2 and Web3 authentication methods. It safeguards user privacy and protects against Sybil Attacks. It aims to enhance the security and transparency of the Web3 ecosystem.

This article explores Ethereum's positioning and roadmap, analyzing the future development of decentralization, ownership utility, and Rollups. In the midst of ongoing debates about Ethereum, this piece may help the market gain a deeper understanding of Ethereum's operational strategies and development trajectory.

Exploring the smart contract features of the TON blockchain platform, including its unique asynchronous messaging mechanism, account model, and gas fee model. The article provides a detailed analysis of the TON blockchain architecture, including the design of the main chain, work chains, and shard chains, and how they work together to enhance network throughput and scalability. It also emphasizes the security issues to be mindful of when writing smart contracts and offers practical advice and best practices to help developers avoid common security vulnerabilities.

Rug pulls, where project developers abandon a project after stealing investor funds, are a growing threat in cryptocurrency. These scams often involve creating a new token, artificially inflating its price, and suddenly withdrawing liquidity. Common tactics include liquidity theft, sell-order restrictions, and token dumps. To protect yourself, conduct thorough research on projects, diversify your investments, and be wary of projects with vague whitepapers or anonymous teams. Utilize blockchain analytics tools to assess project risks and consider using security tools like contract auditors.

Understanding the importance and risks of token approvals is crucial as it is a key mechanism for accessing and managing tokens in smart contracts and wallets. The article delves into the approval processes for ERC-20 and NFT tokens, including how they work in MetaMask and the potential for malicious exploitation. It emphasizes the necessity of approvals in DeFi interactions while warning about the dangers of unlimited approvals. Additionally, it provides best practices for protecting your assets, such as using hardware wallets like Ledger to enhance security.

The article provides an in-depth analysis of the challenges associated with linking identities to public keys in public key cryptography and proposes three solutions: public key directories, identity-based encryption (IBE), and registration-based encryption (RBE). It discusses the application of these solutions in blockchain technology, including their impact on anonymity, interactivity, and efficiency. The article also explores the advantages and limitations of each method, such as IBE's reliance on a strong trust foundation and RBE's optimization of on-chain storage requirements. By comparing these approaches, readers gain a better understanding of the challenges and trade-offs involved in building secure, decentralized systems.

The main argument of this post is that if the desirable end-state is to have programmable privacy infrastructure that can handle shared private state without any single point of failure, then all roads lead to MPC. We also explore the maturity of MPC and its trust assumptions, highlight alternative approaches, compare tradeoffs, and provide an industry overview.