How to use Multisig feature on Bitcoin Core RPC in an online exchange?
Multisig does not make funds more secure just because you are using multisig. Multisig requires multiple keys to sign in order to release funds. The typical use case is with multiple parties holding the required keys. That way in order to spend multiple parties need to agree and sign. If all of the keys required to sign are held by a single party then it defeats the purpose of multisig and no additional security has been added.