 Kraken, a US-based cryptocurrency exchange, has hired Samia Bayou, the former Vice President and Global Head of Private Clients at the digital asset lender BlockFi, as its new Head of Prime Finance and OTC Sales for the EMEA.Bayou announced her appointment on LinkedIn on Friday. However, her LinkedIn profile shows she assumed the role in December last year. Bayou left her role at BlockFi in September last year after one year and five months. 