Is multisig wallet contract audited by any external security company? 

Is this [multisig wallet  contract](https://github.com/Zilliqa/zilliqa-developer/blob/main/products/multisig/src/smartcontract/multisig_wallet_with_zrc2.scilla.js) audited? I am a prospect user for the multisig wallet product, but I am concerned about the security of my fund. 