Bitcoin Forum

What are the best services/apps currently used for managing multisignature wallets for different cryptos?

I don't think that there's currently an application out there which supports multisignature wallets for MULTIPLE crypto's in one interface.

What crypto's exactly do you want a multisig wallet for?

Anyway, for bitcoin i'd recommend to use  Electrum (http://docs.electrum.org/en/latest/multisig.html). Alternatively you could also maybe use something like armory/Bitcoin Core.

If you're also looking for regular multicrypto wallets, take a look here,https://www.cryptocompare.com/wallets, there might actually be some wallets that support multisig. ( Watch what you're downloading though!)

Going off of what was said by AdolfinWolf, you'll be hard-pressed to find that combination just yet. Copay, armory or Electrum as suggested above are great multisig options. As far as multi-currency wallets, you can go for software wallets such as Coinomi or Jaxx.

The best multi-signature wallet I've seen by far is Copay.

https://copay.io

They're also a great option as you're controlling your own private keys. Copay supports Bitcoin (BTC) and Bitcoin Cash (BCH).

Thanks for the input.

I was just wondering how ICO's with multiple crypto payment options protected their cold wallets internally.

I presume some of them are using Shapeshift or a similar type of service to exchange to BTC and ETH and then protect it with multi-signatures from there.

There are usually multi-signature solutions available for the more popular cryptos, so I don't think they would route them through an exchange. That would kind of defeat the purpose of running a multi-signature wallet in the first place.