Introducing Guardblock
Guardblock is a collaborative multisig vault that operates independently from Hardblock. It helps you keep your Bitcoin safe and recoverable without giving up control of your keys.

Why Guardblock exists
Self custody is the right goal, but it relies on you getting everything right, for a very long time. One lost key, one missed backup or one unexpected event can mean your Bitcoin is gone for good, for you and for your family.
Guardblock was built to remove that single point of failure.
How it works
- You hold your own key. Your key stays on your own hardware wallet.
- We co-sign alongside you. Everyday spending needs your key plus Guardblock’s co-signature, so no single key can move your Bitcoin on its own.
- Recovery is built in. Your vault includes recovery paths enforced by Bitcoin itself, so your Bitcoin stays accessible if something goes wrong.
- Your family is covered. You can add Trusted Contacts so your Bitcoin can reach the people you choose if you can’t act yourself.
Who it’s for
Guardblock is for anyone who wants the security of self custody and multisig without the stress of managing multiple devices and backups. Some customers use it as their main setup. Others use it alongside an existing single sig or multisig setup and split their bitcoin across multiple setups - for example, storing their SMSF bitcoin in a Guardblock vault.
Who’s behind it
Guardblock is built by the team behind Hardblock, Australia’s longest running Bitcoin-only exchange, with a zero-loss track record since 2014.
Getting started
Create your account, then set up your vault on your own or book an Onboarding call and our team will guide you through it.
Have questions first? Book a free intro call and check out the website at www.guardblock.com.