GK8 is a blockchain cybersecurity company that offers financial institutions an end-to-end platform for managing blockchain-based assets on their own. The company developed the world's first true air-gapped Cold Vault that enables its clients to create, sign, and send secure blockchain transactions without internet connectivity, eliminating all cyber attack vectors. Recently acquired by Celsius Network for $115 million, the company continues to operate as an independent entity. Chosen by Mastercard to help it define the future of blockchain finance and payments, GK8 serves clients managing billions worth of digital assets, including social investing network eToro, Securrency, a blockchain fintech company backed by State Street, U.S. Bank, WisdomTree, and Abu Dhabi Catalyst Partners, and Prosegur, one of the world's largest custodians with more than $400B assets under management.