Collaborative custody multisig providers have been in business for years. Recently even Block (CashApp etc) has introduced a product with this feature. By geog

Collaborative custody multisig providers have been in business for years. Recently even Block (CashApp etc) has introduced a product with this feature. By geographically distributing your signing devices you improve both security and reliability. One of those keys can be hosted by a third party to be used for recovery, without providing them any ability to touch your funds without your involvement.