We built the easiest Bitcoin multisig self-custody solution for mass adoption. Set up in 5 minutes, no tech skills. Your first vault is free, forever.
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Joined October 2026
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Yes, self-custody is still the answer.
But what we need is multisig that's free and easy to set up. So easy your grandad can do it.
That's what we built at SignBit.
“Just self-custody your Bitcoin, bro.”
Self-custody in 2026:
• Coldcard: weak entropy, ~$116M stolen
• Ledger: customer data leak + hardware implants, $86M+ stolen
• Trezor: 80,689 customer records leaked
• Trezor again: 347,149 emails exposed
• Keystone: authentication key stolen, 18,835 wallets being destroyed
• Keystone again: USB exploit capable of seed extraction
• SafePal: 39,798 customer records exposed
• Foundation Passport: 23,000+ phishing attempts
• BitBox: email list stolen + phishing campaign
• BitBox again: multiple critical firmware bugs
• Tangem: physical password-reset exploit
Self-custody is still the answer.
But damn, HWW companies have had a YEAR.
Real people, when it matters. Open a ticket and you reach a person who can already see your vault's full picture, any day of the week.
Your first vault is free, forever. A 2-of-3 vault, keyholders you invite, and Fountain for every key. Most people finish setting up in about 15 minutes.
Start at signbit.io, with step-by-step guides at signbit.io/guides
