ArcSign Blog
Crypto security knowledge, product tutorials & industry insights
LiteLLM Supply Chain Attack: Environment Variables Stolen — Why Cold Wallets Are Your Last Line of Defense
In March 2026, the popular AI framework LiteLLM was hit by a supply chain attack. Malicious packages stole environment variables, API keys, SSH keys, and crypto wallet files. Deep dive into the attack mechanics and how ArcSign's USB cold wallet architecture provides complete immunity.
USB Backup Strategy: How to Protect Your Crypto with Multiple USB Drives
Complete USB cold storage backup strategy: build a 3-2-1 backup architecture, choose the right USB drives, and use ArcSign's .arcsign encrypted backup so your crypto assets are never permanently lost. Includes three backup tiers and a drill guide.
Taiwan Crypto Regulation Update: Essential Reading for Wallet Users
Comprehensive 2026 Taiwan crypto regulation guide: VASP registration, KYC/AML requirements, and tax implications. Learn about self-custody wallet rights and how Taiwan compares with Japan, Singapore, and Hong Kong.
Cold Wallet vs Hot Wallet: Which Should You Choose in 2026?
Complete cold wallet vs hot wallet comparison across 8 key dimensions: security, convenience, cost, and use cases. Learn the best 2026 strategy and how ArcSign USB cold wallet bridges the gap between security and daily use.
ArcSign Pro NFT Membership: Is It Worth It? Complete Feature Analysis
Complete analysis of ArcSign Pro NFT membership: on-chain identity, batch token approval revocation, advanced DeFi tracking. NFT membership vs traditional subscriptions — should you upgrade?
5 Key Benefits of Using a USB as a Cold Wallet
Why are more people choosing USB cold wallets? Complete analysis of 5 key advantages: zero cost, no firmware risk, ultimate portability, offline security, and full self-custody. Includes a full comparison table of three wallet types.
Phishing Attack Prevention: How to Spot Fake Wallet Websites (With Examples)
Complete guide to 6 common crypto phishing tactics: fake wallet sites, fake airdrops, and fake support. Learn to identify scams and how cold wallets fundamentally reduce phishing risk. Includes emergency response SOP.
BTC + ETH + BSC All-in-One Management: ArcSign Multi-Chain Tutorial
Complete tutorial: manage BTC, ETH, BSC, and 22 chains from a single USB cold wallet. Covers HD wallet architecture, cross-chain transfers, DEX Swap, and DeFi position tracking.
Ledger Recover Controversy Explained: What Are Your Alternatives?
Deep dive into the three core issues of Ledger Recover: private keys leaving the device, closed-source firmware trust, and third-party intervention risks. Compare alternatives including Trezor, Keystone, and ArcSign's offline encrypted backup approach.
5 DeFi Security Trends You Need to Know in 2026
Deep dive into the 5 critical DeFi security trends of 2026: AI-powered flash loan attacks, cross-chain bridge risks, MEV sandwich attacks, new audit standards, and the cold wallet + DeFi security paradigm.
What Is mlock Memory Protection? Why Your Wallet Needs It
Deep dive into mlock memory protection: how private keys can be stolen from memory via swap attacks, cold boot attacks, and memory dumps. Learn how ArcSign's four-layer defense keeps your keys safe.
How to DEX Swap on ArcSign (Step-by-Step Tutorial)
Complete step-by-step guide: from selecting tokens to completing trades, learn how to securely perform decentralized swaps from your cold wallet. Supports 22 chains with OpenOcean + KyberSwap aggregation.
What Is Cold Storage? The Complete 2026 Beginner's Guide
Everything you need to know about cold storage: why you need it, hot vs cold wallet differences, four types of cold storage compared, and how to get started for free with ArcSign.
The Ultimate Seed Phrase Backup Guide: 5 Methods Compared
Paper, metal plates, password managers, Shamir sharing, and ArcSign encrypted backup — five seed phrase storage methods compared to help you find the safest backup strategy.
Complete WalletConnect DApp Connection Tutorial
Learn how to use ArcSign with WalletConnect v2 to securely connect to Uniswap, OpenSea, and other DApps — sign transactions from cold storage for maximum security.
Crypto Wallet Landscape 2026: Who's Leading the Pack?
In-depth 2026 crypto wallet market analysis: comparing hot wallets, hardware wallets, USB cold storage, and MPC wallets. Find the right wallet for you.
How XOR Three-Shard Encryption Protects Your Private Keys (Visual Guide)
Visual guide to XOR three-shard encryption: learn how ArcSign splits your private key into three fragments so it can never be stolen. Includes .arcsign encrypted backup overview.
ArcSign Beginner Guide: Set Up Your USB Cold Wallet in 10 Minutes
Complete step-by-step guide: from downloading ArcSign to creating your first USB cold wallet in just 10 minutes. Covers installation, wallet creation, seed phrase backup, and basic operations.
USB Cold Storage vs Hardware Wallets: Complete 2026 Comparison Guide
Which is more secure — USB cold storage or a hardware wallet? This guide compares security architecture, cost, transparency, and usability to help you choose.