SSP Wallet v1.11.0 turns the wallet into a two-way fiat gateway. From this release onwards, you can buy and sell cryptocurrency directly inside SSP — across seven networks, without leaving the wallet, and without ever handing your keys to a third party. The same release tightens the wallet's security posture with stricter Content Security Policies, improved handling of sensitive data in memory, and proactive warnings when a setup password is too weak.
Seven chains on day one
Buy and Sell launches with full coverage of SSP's supported networks:
- Bitcoin (BTC)
- Litecoin (LTC)
- Ethereum (ETH) and ERC-20 tokens
- Zcash (ZEC)
- Dogecoin (DOGE)
- Ravencoin (RVN)
- Bitcoin Cash (BCH)
Whether you are stacking sats, picking up DOGE for tipping, or rebalancing into ZEC, the flow is the same: pick the asset, enter the amount, complete the fiat step, and the funds settle directly into the corresponding SSP-controlled multisig address.
Why on-ramp matters in a multisig wallet
For most wallets, "buying crypto" is a roundabout dance. You fund a centralized exchange, wait for an ACH or card payment to clear, withdraw to an external address, pay a network fee, and finally see the balance in your self-custody wallet. Each hop is a chance for typos, address-poisoning attacks, or compliance freezes that strand your money on someone else's platform.
A multisig wallet makes that round-trip worse, not better — you have to re-verify the destination on every device that holds a key, and any address mismatch invalidates the whole flow.
SSP collapses the entire path. Fiat in, crypto out, multisig from the first confirmation. The receiving address is generated by the wallet you already trust, signed off by both of your keys, and never copied or pasted manually. Selling works the same way in reverse: the wallet co-signs the spend with you, then routes the fiat to your linked payment method.
It is the difference between renting custody from an exchange for a few minutes and keeping custody from the very first satoshi.
Hardened under the hood
Bringing fiat rails inside the wallet meant raising the security ceiling at the same time. Three changes in v1.11.0 deserve attention.
Stricter Content Security Policies. The wallet now enforces tighter rules over which scripts, styles, and network endpoints the UI is allowed to contact. CSP is one of the strongest browser-level defenses against supply-chain attacks and injected payloads, and tightening it shrinks the surface area available to any future bug or compromised dependency.
Improved memory handling for sensitive data. Seed material, decrypted keys, and signing artifacts are kept in memory for the shortest possible window and zeroed out as soon as they are no longer needed. This reduces the window in which a memory-scraping attacker, a stale page reload, or a crash dump could expose anything sensitive.
Weak-password warnings during setup. SSP now actively detects when a user is attempting to set up the wallet with a password that does not meet basic security recommendations, and surfaces guidance before that password becomes the only thing standing between an attacker and your encrypted vault.
These are exactly the unglamorous fundamentals that a wallet handling both fiat and self-custody needs to get right.
How it works
Buy and Sell lives inside the wallet's main interface, alongside Send and Receive. You choose the network, the asset, and the amount, and SSP hands off the fiat leg to its integrated on-ramp provider. The fiat provider handles the payment method, KYC, and settlement; SSP handles address generation, transaction signing, and the multisig flow.
Crucially, custody never changes hands. The crypto you buy is delivered straight to your multisig address — the same address you would have generated for any external deposit. There is no intermediary balance, no exchange wallet you have to log into, and no withdrawal limit that depends on the provider's mood. Selling reverses the route: SSP co-signs the outbound transaction with your second key, the provider converts to fiat, and the proceeds land in your linked account.
If you are new to multisig, the launch story for SSP's true 2-of-2 design explains the model. If you want to understand which chains you can buy into today, the Zcash and Bitcoin Cash announcement covers two of the seven supported networks.
What's next
With both an on-ramp and an off-ramp now native to the wallet, SSP closes the loop between fiat and self-custody — and frees up the roadmap to focus on broadening the supported asset list and deepening multisig coverage for advanced flows. Read the full release notes on GitHub.