Blog
Technical insights
Deep dives into smart contract vulnerabilities, blockchain security best practices, and technical research from CertiK engineers.
EducationalCIP-56: Redefining Token Standards for Institutional DeFiThis article examines CIP-56’s technical design and explains how it addresses limitations that have historically prevented regulated institutions from adopting traditional token standards. It also offers a practical lens for builders.
EducationalKYC Services for Banking: A Practical Playbook for Faster, Safer Customer OnboardingKYC services for banking: workflows, providers, AML checks, and automation tips to streamline onboarding without sacrificing risk management.
EducationalLessons from The Ledger Data Leak: How to Secure Your Crypto The recent Ledger data breach serves as a stark reminder that security extends far beyond the blockchain itself. Indeed, the exposure of personal details, including contact information and postal addresses, has opened a new front for sophisticated cyberattacks targeting ledger customers.
EducationalZero-Knowledge Virtual Machines (ZKVMs) in Practice: A Technical SurveyZero-knowledge virtual machines (ZKVMs) are proof-generating replicas of familiar software stacks. Because they turn heavyweight replays into quick proof checks with optional privacy, ZKVMs already anchor privacy-preserving DeFi flows, compliance attestations, oracle feeds, and rollups.
EducationalPost-Quantum Signatures, Part 1: Understanding One-Time SignatureDigital signatures are a cornerstone of modern information security, providing authenticity, integrity, and non-repudiation for digital communications. The security of prevalent schemes such as RSA, DSA, and ECDSA is predicated on the computational hardness of number-theoretic problems—specifically, integer factorization and the discrete logarithm problem. However, the advent of large-scale quantum computers threatens to render these foundations obsolete. Shor's algorithm, a quantum algorithm, can solve both problems in polynomial time, effectively breaking the cryptographic security of a significant portion of our current digital infrastructure.
EducationalWhat is a Privacy Coin?Privacy coins are cryptocurrencies engineered to enhance user anonymity by obscuring transaction data (such as sender identities, transaction amounts transferred, transaction history, etc.). Unlike pseudonymous digital currencies such as Bitcoin (BTC), privacy coins employ advanced privacy-enhancing cryptographic methods to mimic the untraceability of physical cash in the Web3 ecosystem.
EducationalWhat Is a Web3 Wallet?Learn what a Web3 wallet is, how it works, and the different types available. Explore features, benefits, and how Web3 wallets enable secure access to decentralized applications. 
EducationalThe Importance of KYC Verification: A Key to Secure Financial TransactionsExplore the importance of KYC verification in securing financial transactions. Learn how it helps prevent fraud, ensure compliance, and protect both businesses and users.
EducationalIntroducing Aleo: A Premier Platform for Private Blockchain ApplicationsAleo Systems has created a Layer 1 blockchain named Aleo with a focus on privacy achieved through the use of zero-knowledge proofs (ZKPs) and other cryptographic methods. Unlike most popular blockchains where data used and created by transactions can be viewed by an external observer, Aleo provides the ability to hide such information. 
EducationalMove for Solidity Developers IV: Cross-Contract CallIn this article, we delve into the concept of cross-contract calls and examine the distinctions between Solidity and Move contracts in this area. We will assess the mechanisms and security of executing cross-contract calls in Move, aiding developers in better comprehending how to manage contract interactions within the Move environment.
EducationalHow Tornado Cash Usage Has Changed Since Sanctions Were Lifted In this blog, we look at how Tornado Cash works, the history of its sanctions, and how its usage has shifted since the sanctions were lifted. 
EducationalHow to Protect Your Crypto in 2025Given that phishing attacks are on the rise, it’s important for all Web3 participants to learn how to better protect their cryptocurrency. Below, we’ll look at strategies for avoiding phishing and traps you should avoid.