Abstract: Disclosed is a multi-signature security account control system. The present invention comprises a multi-signature security account in which at least three participating accounts have management authority, wherein the participating accounts are a first participating account corresponding to a user terminal, a second participating account corresponding to an HSM management server, and a third participating account corresponding to an exchange server, and the HSM management server may control the authority of the multi-signature security account to be controlled by using signature information provided from at least two of the participating accounts.

Abstract: Provided is an apparatus for deriving a social relation between accounts based on a transaction ledger, which includes: a data storage unit storing account information, software for deriving an inter-account social relation, and inter-account social relation information; and a processor deriving the social relation between the accounts based on a transaction ledger generated by transactions among users with the accounts.

Abstract: Disclosed is a multi-signature security account control system. The present invention comprises a multi-signature security account in which at least three participating accounts have management authority, wherein the participating accounts are a first participating account corresponding to a user terminal, a second participating account corresponding to an HSM management server, and a third participating account corresponding to an exchange server, and the HSM management server may control the authority of the multi-signature security account to be controlled by using signature information provided from at least two of the participating accounts.

Abstract: Provided is an apparatus for deriving a social relation between accounts based on a transaction ledger, which includes: a data storage unit storing account information, software for deriving an inter-account social relation, and inter-account social relation information; and a processor deriving the social relation between the accounts based on a transaction ledger generated by transactions among users with the accounts.