Overview

Get an overview of holder groups in MPC Wallets, including Main, Signing, and Recovery Groups.

What are holder groups?

With MPC technology, private key shares are individually generated within separate secure environments, encrypted, and divided amongst multiple parties. A set of key shares is referred to as a holder group.

There are three types of holder groups: Main Group, Signing Group, and Recovery Group. The Main Group is the first set of key shares you create before using MPC Wallets. It will be used to create both Signing Groups and Recovery Groups.

	Main Group	Signing Group	Recovery Group
Primary Purposes	Sign transactions (if you have not created Signing Groups) Create Signing Groups and Recovery Groups	Sign transactions	Create a new Main Group (if your Main Group and the backup copy are lost or compromised) Recover the whole private key
Required / Optional	Required	Optional	Optional
Max Quantity per Vault	1	1 or more	1 (recommended) or more

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