XColdPro
Air-gapped cold storage for private keys, without proprietary hardware.
XColdPro — Air-Gapped Cold Storage
Air-gapped digital asset protection with ten security layers.
A Fundamentally Different Approach
AES-256-GCM authenticated encryption (NIST FIPS 197) across ten distinct security layers, on standards-based keys you can take anywhere — surpassing the single-layer architecture of conventional hardware devices. Whether you hold $500 or $50 million, deploy on your existing hardware with full encryption, or on dedicated air-gapped systems for maximum isolation. No proprietary devices required. No vendor lock-in. No wireless attack surface of any kind.
Zero Attack Surface Architecture
No USB, Bluetooth, NFC, or wireless connectivity required. Eliminates physical extraction, side-channel, firmware, and supply chain attack vectors by design.
BlackHole Duress Layer
An optional Nyxor-exclusive layer for coercion scenarios. What an attacker obtains under forced disclosure does not lead to your assets. Your keys stay standards-based and portable, and the layer is opt-in.
Coercion resistanceEstate Continuity Protocol
Industry-first automated dead man's switch for digital assets. Configurable beneficiary notification ensures estate continuity without third-party custody, legal intermediaries, or custodial risk.
Patent-pendingEmergency Evacuation System
Instant cryptographic key destruction and optional asset evacuation to pre-configured safe wallets in under 0.2 seconds. Engineered for high-threat, time-critical scenarios.
Air-Gapped Multi-Party Approval
M-of-N multi-signature authorization across all 22 supported blockchain networks — entirely offline. Ideal for families, business partners, and organizations. No smart contract dependency, no online coordination, no hot wallet exposure.
Industry exclusive22 Native Blockchain Networks
Full native implementation across major protocols including Bitcoin, Ethereum, Solana, Cardano, XRP Ledger and more — plus 8 EVM chains supporting unlimited custom tokens.
Integrated Compliance Suite
Built-in cost basis calculation (FIFO, LIFO, HIFO), annual tax report generation, and portfolio export — computed entirely on-device with zero data transmitted to third parties.
Anti-Forensic Design
Stealth file architecture, hidden system attributes, and RAM-only key handling — private keys exist only in memory during an operation and are cleared immediately, leaving no forensic trace on disk.
Active Threat Neutralization
Built-in defenses against keyloggers, clipboard hijackers, screen capture malware, and phishing attacks — operating at the application level in real time. Encrypted keypad input bypasses keystroke logging entirely. Clipboard monitoring detects and blocks address-swap attacks before transactions are signed.
Always active — zero configurationSeedVault Threshold Recovery
SeedVault splits your recovery phrase into 20-word SLIP-39 shards (Shamir Secret Sharing over GF(2⁸)) with any threshold from 2-of-3 to 15-of-16. Fewer shards than the threshold reveal nothing at all — information-theoretic security, not merely computational.
Standards-Based Seed Portability
Seeds are standard BIP-39, derived with BIP-32 and BIP-44 account structure using SLIP-44 coin types. Bitcoin supports legacy, nested SegWit and native SegWit derivation, so you hold bc1 addresses. With the optional duress layer off, your wallet restores in Trezor, Ledger, Sparrow, Electrum, MetaMask or Phantom with XColdPro absent. No vendor lock-in, by design.
No lock-in