Prokey Optimum: Safe and easy cryptocurrency web-based hardware wallet

There were 12 major cryptocurrency exchange hacks in 2019. In total, over $292 million and over 500,000 pieces of customer data were stolen. Using hardware wallet is a must for keeping private-key and digital assets offline but the other hardware wallets are vulnerable to supply-chain attacks and use executable applications to make connection with device which is a good point for hackers to run an attack. Prokey Optimum is a web-based hardware wallet that allow you manage 1500+ cryptocurrencies through a browser only, without install any application and bridges. on the other hand, it's protected from supply-chain attack because of using mutual authentication. in other words, If a device is tampered physically, it cannot be used to gain access to the wallet due to an authentication needed from the servers. Prokey Optimum hardware wallet features * Secure Firmware with mutual authentication * supports Bitcoin, Ethereum, Litecoin, Bitcoin-cash, USDT and 1200+ cryptocurrency * Manage through a web browser only * Manage all digital assets in one single platform * Easy to use for newbie and non-technical users * Support USDT on both Omni and Ethereum blockchain (ERC20)