The appetite for investments into digital assets among institutions is growing fast. Military-grade security is needed to safeguard the assets of these high-value clients. To this end we discuss two of the most common security technologies employed by third party digital custodians. HSMs provide a custom hardware solution that never exposes the private key and is the most secure and resistant to exploits but there are risks associated with authentication of transactions. MPCs split private keys among relevant parties and predetermined rules govern how many parties must participate to authenticate a transaction. Vaultavo opted for the ultra-secure HSM technology and solved its associated authentication risk with a revolutionary biometric enabled digital asset smart card.