WISeKey International Holding Ltd: WISeKey's VaultIC Microprocessor Secures Cold Wallets and Offers Security and Ease-of-Use for Bitcoin and Other Cryptocurrency Users For more information visit: https://www.wisekey.com/products-services/secure-semiconductors/secure-elements/ ZUG, GENEVA, Switzerland - January 27, 2021- WISeKey International Holding Ltd ("WISeKey", SIX: WIHN / Nasdaq: WKEY), a recognized leader in cybersecurity and IoT, today announced that its semiconductor VaultIC secures Cold Wallets with a contactless hardware that enables the wallet to offer security and ease-of-use to Bitcoin and other cryptocurrency users. Cold Wallets are the safest option to store private keys as these wallets are not connected to the internet and therefore reduce the risk of being compromised. Cold Wallets cannot be infected by computer viruses because private keys never come in contact with network-connected devices or potentially vulnerable software.