Alexey

@alazium

171 Following

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Security Analysis. Understanding the Stock-to-Flow (S2F) Chart for Bitcoin Skynet Certik Quest 2025.05.23 What does the Stock-to-Flow (S2F) model primarily measure? 3: Asset scarcity by comparing existing supply to production rate Which event directly increases Bitcoin’s S2F ratio? 2: Bitcoin halving What is one benefit of using the S2F model as a long-term investor? 3: It helps understand Bitcoin's scarcity and monetary design What typically happens to the flow part of the S2F formula after a Bitcoin halving? 4: It gets cut in half https://skynet.certik.com/quest/understanding-the-stock-to-flow-s2f-chart-for-bitcoin

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Security Analysis. The Crypto Fear & Greed Index Skynet Certik Quest 2025.05.23 What is the purpose of the Fear & Greed Index in crypto? To measure investor sentiment and emotional extremes Which of the following is not a factor in the index? 4: NFT sales volume Why should investors be cautious during times of Extreme Greed? 2: Scams and emotional decisions are more likely What is one limitation of the Fear & Greed Index? It primarily reflects Bitcoin data and is updated daily https://skynet.certik.com/quest/the-crypto-fear-and-greed-index

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Security Analysis. Pectra’s EIP-7702 and Its Security Implications Across EVM Chains Skynet Certik Quest 2025.05.23 What new capability does EIP-7702 give to an EOA? 1: It can execute code by delegating to a smart contract. After EIP-7702, how does the check require(tx.origin == msg.sender) behave? 3: It can be bypassed by a delegated EOA (i.e. no longer safe) What happens to extcodesize(address) for an EOA that has set delegation code? 2: It returns >0, since the EOA now has code Under EIP-7702, what can happen if you send ETH to a delegated EOA? 2: It can invoke the delegate’s fallback function, potentially using extra gas or reverting https://skynet.certik.com/quest/pectras-eip-7702-and-its-security-implications-across-evm-chains

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Security Analysis. Securing DeFi: Oracle's Critical Role and the TWAP Vulnerability Skynet Certik Quest 2025.05.23 What is the primary function of an oracle in blockchain ecosystems? 1: To provide external data to smart contracts What is a significant risk associated with TWAP oracles? 2: They can be manipulated if the price is skewed throughout the averaging period In the Mango Markets exploit, how did the attacker inflate the value of their account? 4: By manipulating the price of the MNGO token Which of the following is NOT a recommended strategy to prevent oracle manipulation? 3: Ignoring anomalies in price data https://skynet.certik.com/quest/securing-defi-oracles-critical-role-and-the-twap-vulnerability

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Security Analysis. European Union's forthcoming Anti-Money Laundering Regulation (AMLR) Skynet Certik Quest 2025.05.23 What is the primary objective of the EU's Anti-Money Laundering Regulation (AMLR)? 2: To enhance financial transparency and combat illicit activities Which of the following will be prohibited under the AMLR? 4: Anonymous crypto accounts and wallets Which regulatory body will oversee large crypto platforms under the AMLR? 3: Anti-Money Laundering Authority (AMLA) Which of the following privacy coins will be banned under the AMLR? 3: Monero (XMR) https://skynet.certik.com/quest/european-unions-forthcoming-anti-money-laundering-regulation-amlr

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Security Analysis. Crypto Derivatives Market Skynet Certik Quest 2025.05.23 What is a crypto derivative? 3: A contract based on the price of a crypto asset Why are derivatives important in the crypto ecosystem? 2: They provide leverage, risk management, and price discovery What is one of the main risks of leveraged trading in crypto derivatives? 3: Instant liquidation from small price movements What does a high funding rate on perpetual swaps indicate? 2: Strong bullish sentiment and over-leveraged longs https://skynet.certik.com/quest/crypto-derivatives-market

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Security Analysis. Model Context Protocol (MCP) in Crypto and AI Skynet Certik Quest 2025.05.12 What is the primary purpose of the Model Context Protocol (MCP)? 3: To standardize AI interactions with external tools and data sources What is a potential security risk associated with MCP? 2: Tool poisoning attacks Which practice is recommended to secure MCP implementations? 3: Implementing robust authentication and authorization How can AI agents use MCP in cryptocurrency applications? 1: By autonomously managing wallets and executing trades https://skynet.certik.com/quest/model-context-protocol-mcp-in-crypto-and-ai

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Security Analysis. Tokenized Real Estate Skynet Certik Quest 2025.05.12 What is a primary advantage of tokenizing real estate assets? 4: Enhanced liquidity and accessibility Which technology underpins the automation of processes in tokenized real estate? 3: Smart contracts What is a potential risk associated with real estate tokenization? 2: Regulatory uncertainty How can investors protect their tokenized real estate assets? 3: Employing secure wallets and platforms https://skynet.certik.com/quest/tokenized-real-estate

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Security Analysis. Telegram Web3 Crypto Scams Skynet Certik Quest 2025.05.12 Which scam involves bots prompting users to run commands that install malware? 2: Fake verification bots What is a hallmark of phishing scams on Telegram? 4: Fake login pages capturing seed phrases What is an effective method to safeguard against malware distributed via Telegram? 1: Using burner wallets Which practice helps verify the authenticity of a Telegram channel or bot? 2: Checking for third-party verification badges https://skynet.certik.com/quest/telegram-web3-crypto-scams

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Security Analysis. EVM – Cosmos Convergence Research (Part 1) Skynet Certik Quest 2025.05.12 How does EVMOS differentiate EVM transactions from Cosmos transactions? 2: By inspecting each message’s type URL for an ExtensionOptionsEthereumTx flag What is the main discrepancy between EVM and Cosmos fee markets? 4: EVM refunds unused gas; Cosmos does not What decorator was introduced to block unauthorized EVM messages in Cosmos transactions? 4: RejectMessagesDecorator How can nesting MsgEthereumTx within MsgExec lead to fee theft? 1: It bypasses ante handlers and allows inflated gas refunds https://skynet.certik.com/quest/evm-cosmos-convergence-research-part-1

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Security Analysis. Crypto Token Unlocks and Vesting Schedules Skynet Certik Quest 2025.05.12 What is the primary purpose of a token vesting schedule? 3: To prevent sudden market dumps by releasing tokens gradually Why should investors review a project's token unlock schedule before investing? 3: To anticipate potential price impacts from token releases What is a potential consequence of a large token unlock event? 2: Increased selling pressure and potential price volatility How can investors mitigate risks associated with token unlocks? 1: Diversifying their investment portfolio https://skynet.certik.com/quest/crypto-token-unlocks-and-vesting-schedules

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Security Analysis. Ethereum's Pectra Upgrade Skynet Certik Quest 2025.05.06 What new transaction capability does Pectra introduce on the execution layer? 1: Multi-operation transactions Pectra prepares the network for which future scalability feature? 3: Verkle trees Which testnet successfully ran Pectra before mainnet launch? 3: Hoodi What date is the Ethereum Pectra upgrade scheduled for? 2: May 7, 2025 https://skynet.certik.com/quest/ethereums-pectra-upgrade

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Security Analysis. H.R.1122 - CBDC Anti-Surveillance State Act Skynet Certik Quest 2025.05.06 What is the primary purpose of the SEC guidance approved on April 10, 2025, regarding crypto asset offerings? 4: To provide clarity on how federal securities laws apply to crypto assets and enhance investor protection What is meant by "scaled disclosure" in the context of the SEC guidance? 2: Tailoring disclosures to the issuer’s size and specific circumstances According to the guidance, what must issuers disclose about their securities? 1: The rights, obligations, and preferences of security holders, along with technical specifications and supply details What aspect of crypto asset offerings does the guidance aim to improve through comprehensive disclosure? 3: Investor protection and market integrity https://skynet.certik.com/quest/h-r-1122-cbdc-anti-surveillance-state-act

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Security Analysis. Uniswap V4: Hooks Security Considerations Skynet Certik Quest 2025.05.05 What is the primary purpose of hooks in Uniswap V4? 2: To attach custom logic at various stages of a liquidity pool's lifecycle How does Uniswap V4 determine a hook's permissions? 4: By examining the least significant bits of the hook's deployed address Why is it important for hooks to return data in specific formats? 3: To prevent transaction failures due to invalid hook responses How can improper revert conditions in hooks lead to security issues? 1: By causing permanent loss of user funds https://skynet.certik.com/quest/uniswap-v4-hooks-security-considerations

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Security Analysis. A New Era in Web3 Fundraising — Opportunities and Challenges Skynet Certik Quest 2025.04.28 What is the primary function of nodes sold during an INO? 1: To process transactions and secure the network Which factor contributes to the success of INO projects? 3: Implementation of tiered node pricing systems What is a significant challenge faced by INO participants? 3: Uncertain token generation events and lock-up periods Why might smaller-scale projects struggle with the INO model? 1: Due to the model's alignment with long-term infrastructure development https://skynet.certik.com/quest/a-new-era-in-web3-fundraising-opportunities-and-challenges

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Security Analysis. Interoperable Programmable Token Design on Cardano (CIP-113/143) Skynet Certik Quest 2025.04.28 What was the primary goal of merging CIP-143 into CIP-113? 4: To create a unified standard for interoperable programmable tokens on Cardano How does CIP-113 achieve an account-like abstraction in a UTxO model? 1: By using a consistent address scheme that allows wallets to display balances as if in an account Which of the following is a key advantage of CIP-113 over Ethereum’s ERC-20 standard? 2: It avoids the “approve/allowance” pattern, reducing certain types of exploits What is one of the main trade-offs of using CIP-113 programmable tokens compared to traditional native tokens? 4: Introduction of administrative controls that reintroduce an element of trust https://skynet.certik.com/quest/interoperable-programmable-token-design-on-cardano-cip-113-143

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Security Analysis. Understanding the Hong Kong SFC A-S-P-I-Re Roadmap for Virtual Assets Skynet Certik Quest 2025.04.28 Which of the following is an initiative under Pillar S (Safeguards)? 2: Developing dynamic custody technologies What is a key focus of Pillar P (Products) in the roadmap? 1: Diversifying VA offerings such as professional investor frameworks and staking services Under Pillar I (Infrastructure), the SFC plans to deploy tools to combat which of the following? 2: Fraud and market misconduct What primary benefit does the A-S-P-I-Re roadmap aim to provide for the crypto asset markets? 4: A clearer, more comprehensive regulatory framework https://skynet.certik.com/quest/understanding-the-hong-kong-sfc-a-s-p-i-re-roadmap-for-virtual-assets

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Security Analysis. Move for Solidity Developers I: Storage and Access Control Skynet Certik Quest 2025.04.28 What is a primary difference between Solidity and Move's approach to access control? 2: Move uses the signer type, while Solidity relies on msg.sender. In Aptos Move, where is data primarily stored? 3: Organized by accounts, with each holding specific resources. How does Sui Move's storage model differ from Aptos Move's? 3: Sui Move uses an object-centric model, while Aptos Move uses an account-based model. What is the purpose of a "capability" in Move? 2: To signify permission to perform certain actions. https://skynet.certik.com/quest/move-for-solidity-developers-i-storage-and-access-control

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Project Spotlights. BitDCA | A New Way to Own Bitcoin Skynet Certik Quest 2025.04.23 What does the BDCA token provide to its holders? 2: Passive BTCB rewards from transaction fees What makes Littlebit a “set-and-forget” savings app? 3: It automatically rounds up card purchases into BTC https://skynet.certik.com/quest/bitdca-a-new-way-to-own-bitcoin

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Security Analysis. Eavesdropping Attack Skynet Certik Quest 2025.04.21 What is an eavesdropping attack in cybersecurity? 1: Unauthorized interception of network communications Why are public Wi-Fi networks particularly vulnerable to eavesdropping attacks? 2: They are often unsecured, allowing easy interception of data Which technique involves intercepting and potentially altering communication between two parties? 2: Man-in-the-middle attack What role does a Virtual Private Network (VPN) play in securing communications? 1: It creates an encrypted tunnel for data transmission https://skynet.certik.com/quest/eavesdropping-attack

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