Perry Wiseblatt

A user in the United States, United Kingdom, or European Union holds cryptocurrency in a self-custodial wallet and considers whether that wallet itself creates regulatory reporting obligations or compliance risks. The immediate answer—that a self-custodial wallet does not collect personal information or require identity verification—is technically correct but incomplete. Regulatory jurisdiction, asset movement, exchange connections, …

Rabby Wallet in Regulated Markets: KYC, Sanctions Screening, and Compliance Concerns Read More »

A user in the United States, United Kingdom, or European Union holds cryptocurrency in a self-custodial wallet and considers whether that wallet itself creates regulatory reporting obligations or compliance risks. The immediate answer—that a self-custodial wallet does not collect personal information or require identity verification—is technically correct but incomplete. Regulatory jurisdiction, asset movement, exchange connections, …

Rabby Wallet in Regulated Markets: KYC, Sanctions Screening, and Compliance Concerns Read More »

Ein Nutzer hat bei Polymarket ein Konto angelegt, Geld eingezahlt und regelmäßig auf Ereignisse gewettet. Einige Tage später meldet sich der Support: Das Konto wurde gesperrt, weil eine zweite KYC-Verifizierung (Know Your Customer) eingereicht wurde – unter seinem Namen, aber mit Dokumenten, die nicht ihm gehören. Der Angreifer hatte den Namen richtig, aber gefälschte oder …

Polymarket KYC-Spoof: Kann jemand mit deinem Namen verifizieren und dein Konto übernehmen? Read More »

Ein fortgeschrittener Nutzer der dezentralisierten Finanzwirtschaft steht vor einem praktischen Problem: Seine Identitäten sind über mehrere Blockchain-Plattformen verstreut, von Ethereum-basierten Anwendungen bis hin zu Solana-DApps. Jede Anwendung verlangt eine neue Verbindung, jede Transaktion benötigt eine separate Authentifizierung, und die Kontrolle über persönliche Daten bleibt fragmentiert. Die zentrale Frage ist nicht, ob eine Wallet große Mengen …

Dezentrale Identitäten (DID) mit OKX Wallet verwalten: Das unterschätzte Feature für Web3-Profis Read More »

A user receives a Trezor hardware wallet, sets it up with a recovery seed, secures the device with a PIN, and stores it carefully. Six months later, the device is either lost during travel, damaged by water or impact, or misplaced in a move. The cryptocurrency remains on the blockchain, but access to it depends …

What Happens When You Lose or Break Your Trezor Device? Recovery Procedures Explained Read More »

What if the most important question in a cross-chain transaction is not whether it can move, but whether you can still understand what you are authorizing after it arrives? For Cosmos users, Inter-Blockchain Communication, or IBC, makes assets and messages travel between independent blockchains with a degree of composability that resembles one connected financial system. …

Why IBC on Secret Network Is a Security Problem Before It Is a DeFi Opportunity Read More »

A Solana user approves what appears to be a routine token swap, but the transaction silently grants unlimited spending authority to a malicious contract. Another user receives an NFT that looks legitimate but carries a hidden instruction to drain the wallet. These are not hypothetical scenarios. They occur regularly across the Solana blockchain because transaction …

Transaction Preview and Risk Alerts: How Solflare Prevents Phishing and Rug Pulls Read More »

A common misconception in DeFi is that a transaction is safe if the wallet shows a familiar token amount and the gas fee looks reasonable. In reality, low cost and low risk are different properties. A cheap transaction can authorize a malicious contract, route assets through an unexpected call, or leave an approval active long …

Gas Optimization, Transaction Simulation, and Portfolio Tracking: A Safer DeFi Workflow Read More »

A developer evaluating wallet software for custody of significant holdings faces a practical puzzle: how to distinguish between claims of security and evidence of security. Marketing materials often describe features such as “open-source” or “non-custodial” without explaining what those terms actually require in terms of code review, update cadence, or third-party verification. The distinction matters …

Comparing Open-Source Wallets: Cake Wallet vs Alternatives in Code Transparency and Security Audits Read More »

In a decentralized exchange, the quoted price is not necessarily waiting for a buyer and seller to agree. On Uniswap, the trade itself changes the market. That counterintuitive fact explains both the power and the risk of the Uniswap protocol: liquidity pools provide continuous execution, but every swap interacts with mathematical rules, available capital, network …

Uniswap V3 Myths: What the Protocol Really Does—and Where the Risks Begin Read More »