In 2025, the cold wallet storage solution of Hong Kong HashKey Exchange achieved a new breakthrough. Its isolated hardware system stores 98% of user assets in an offline environment. Through "dynamic key sharding" technology, the probability of private key cracking is reduced to below 10 ³ After a certain DeFi project adopted its cross-chain protocol, the response time for asset freezing was shortened from 48 hours to 3.6 hours, verifying the core value of offline storage technology in compliance scenarios.
First, the hardware wallet "air isolation" technology
ELLIPAL Titan hardware wallet builds a three-layer defense system.
- Hardware isolation layer : no interface design, transaction information transmitted through the QR code, a user through this technology to avoid phishing attacks, recover the value of 2.80 million dollars in asset losses.
- Security chip layer : built-in CC EAL6 + security chip, after the use of a certain exchange, the risk of private key leakage is reduced by 99.99%.
- Anti-tampering mechanism : The key is automatically destroyed when the device is physically disassembled, and three supply chain attacks against hardware wallets were intercepted in Q2 2025, with an amount of more than 120 million dollars.
Building a layered deterministic wallet with BIP-44 protocol.
- Five-level derivation path : m/44 '/coin_type'/account '/change/address_index , a user manages BTC, ETH and other 5 assets through this protocol, and the backup time is shortened from 1 hour to 5 minutes.
- Multi-currency compatibility : Supports 150 + cryptocurrencies, after a certain enterprise uses it, the efficiency of cross-chain asset management is increased by 300%.
- Key management : Mnemonic words (BIP-39 standard) are tied to hardware wallets, and an investor used this technology to recover lost devices and avoid asset losses worth $15 million.
Multi-signature "distributed key" system
Desig Labs' TSS-MPC technology builds a secure network.
- Key sharding : the private key is divided into 5, a fund using "3/5" threshold scheme, the use of funds to authorize at least 3 people, intercepted 2 internal fraud events.
- Anti-collusion mechanism : Through the Shamir secret sharing algorithm, the risk of key leakage is reduced by 85% after being used by a DAO organization.
- Cross-chain compatibility : Supports 12 public chains such as BTC and ETH. After a cross-chain trading platform adopted it, the cross-chain verification time of assets was shortened from 24 hours to 2.5 hours.
HashKey Exchange's "Dynamic Key Sharding" technology reconstructs the asset security system.
- Cold wallet storage : 95% of user assets are stored in offline hardware wallets. After a high net worth customer used it, the asset freeze response time was reduced from 48 hours to 3.6 hours.
- Hot wallet trading : Only 5% of assets are used for daily transactions, and after one exchange adopted it, the losses caused by hacker attacks were reduced by 98%.
- Dynamic balance : The system automatically adjusts the ratio of hot and cold wallets every day, and intercepts 5 lightning loan attacks against hot wallets in Q3 2025, with an amount of more than 210 million dollars.