Many bitcoin/blockchain companies and groups, including exchanges, offchain wallet services, token funds, and so on, store their large amount of blockchain assets on single "NON-MULTISIG" addresses. We do not know whether these addresses are cold or not, but definitely NON-MULTISIG, private keys are controlled by one singular person, that is really a high risk thing.

So we decide to initiate the "Multisig Day" Proposal for the bitcoin/blockchain world, and as a wallet developing team, we will prepare tens of thousands dollars of devices (hardware wallets and metal seed cards) to help companies and groups to begin using Cold+Multisig wallet solution for their bitcoin/blockchain assets.

Bither Wallet ( bither.net )
Bitpie Wallet ( bitpie.com )
Bithd Hardware Wallet ( bithd.com )