Multisig Explained

How 2-of-2 multisignature actually works in SSP — and why it matters.

Multisig wallets require multiple signatures to authorize a transaction. SSP enforces 2-of-2 on every signed action: the browser extension and the mobile SSP Key app must both approve. This page collects the deep-dives that explain how the model works, what attacks it stops, and where its limits sit.

Navy SSP cover with shield, key, eye-off and CPU icons on a dark gradient, the failure-modes chapter of Multisig Deep Dive

Multisig failure modes and how SSP mitigates them

Five multisig failure modes: lost device, lost seed, key compromise, server outage, total destruction — and the recovery path for each in SSP.

10 min read
Navy SSP cover with key, lightning and shield icons on a dark gradient, the single-signer UX chapter of Multisig Deep Dive

Single-signer multisig: how SSP makes two devices feel like one wallet

How SSP collapses 2-of-2 multisig into single-signer UX, what is hidden, where it breaks, and why the friction you see is the security.

9 min read
Navy SSP cover with key, shield, fingerprint and lock icons on a dark gradient, the social-recovery comparison chapter of Multisig Deep Dive

Social recovery vs multisig: two answers to losing a key

Multisig protects against theft; social recovery protects against loss. Side-by-side comparison of when each wins for solo, joint and team setups.

8 min read
Navy SSP cover with key, shield, CPU and lightning icons on a dark gradient, the Schnorr chapter of the Multisig Deep Dive series

Schnorr signatures and multisig aggregation

How Schnorr's linearity lets multisig become a single on-chain signature, what MuSig2 does, and what aggregation changes for SSP fees and privacy.

9 min read
Navy SSP cover with key, shield and CPU icons on a dark gradient, the BIP48 chapter of the Multisig Deep Dive series

BIP48 explained: the derivation path behind SSP

How BIP48 standardises multisig wallet construction, why SSP follows it, and what that means for recoverability outside SSP.

8 min read
Navy SSP cover with key, shield and lock icons on a dark gradient, the m-of-n picker chapter of the Multisig Deep Dive series

2-of-2 vs 2-of-3 vs m-of-n multisig: picking the right threshold

Multisig threshold guide for solo, joint and team setups: when 2-of-2 suffices, when 2-of-3 starts to pay for itself, when teams need 3-of-5.

8 min read
Navy SSP cover with key, shield and lock icons over a dark gradient, opening the Multisig Deep Dive series

What is multisig, and why it matters

Plain-English intro to multi-signature wallets — what m-of-n really means, how it differs from a single-key seed backup, and when it's worth the friction.

7 min read
Diagram of a 2-of-2 multisig wallet showing two signers approving one transaction

What is 2-of-2 multisig?

2-of-2 multisig splits the keys to your wallet across two devices so no single seed, screen, or signature can move your coins alone.

9 min read