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Articles, guides, and reviews about Security from the Bitcoin Products team.

124 articles · Page 2 of 7

How to Set Up TapSigner NFC Card for Multisig Bitcoin Wallets

How to Set Up TapSigner NFC Card for Multisig Bitcoin Wallets

Step-by-step guide to configuring TapSigner as a cosigner in 2-of-3 multisig setups, including NFC troubleshooting and backup procedures.

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Casa Multi-Signature Review After 6 Years of Bitcoin Custody

Casa Multi-Signature Review After 6 Years of Bitcoin Custody

An honest assessment of Casa's evolution from simple 2-of-3 setups to enterprise-grade inheritance planning after six years of operation.

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Paradigm's Quantum Bitcoin Proposal Could Save Early Adopter Holdings Without Moving Coins

Paradigm's Quantum Bitcoin Proposal Could Save Early Adopter Holdings Without Moving Coins

Paradigm's PACTs proposal lets dormant Bitcoin holders prove ownership privately, offering a potential rescue path for Satoshi-era coins before quantum threats arrive.

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Paul Sztorc's eCash Fork Creates Hazardous Bitcoin Airdrop Risk for Hardware Wallet Users

Paul Sztorc's eCash Fork Creates Hazardous Bitcoin Airdrop Risk for Hardware Wallet Users

Developers warn Sztorc's eCash proposal could expose hardware wallet users to replay attacks when claiming airdropped tokens. Here's what you need to know.

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Paradigm's Quantum Proof System Could Let Satoshi Verify Identity Without Moving Coins

Paradigm's Quantum Proof System Could Let Satoshi Verify Identity Without Moving Coins

Paradigm's PACTs proposal lets dormant Bitcoin holders prove wallet control privately, offering Satoshi a way to verify identity without touching coins.

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Paul Sztorc's eCash Fork Creates Hazardous Airdrop Risk for Bitcoin Users

Paul Sztorc's eCash Fork Creates Hazardous Airdrop Risk for Bitcoin Users

Developers warn Sztorc's August 2026 eCash Bitcoin fork lacks replay protection, exposing BTC holders to fund loss and controversial Satoshi coin seizure.

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How to Protect Your Hardware Wallet During Travel Using SLNT Faraday Bags

How to Protect Your Hardware Wallet During Travel Using SLNT Faraday Bags

A step-by-step guide to using military-grade Faraday bags for hardware wallet security when crossing borders or attending Bitcoin conferences.

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Trezor Safe 7 Review After 6 Months of Daily Use

Trezor Safe 7 Review After 6 Months of Daily Use

A research-based review of the Trezor Safe 7 after six months on the market. Is this quantum-ready hardware wallet worth $249?

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Paradigm's Quantum Proof Design Could Save Satoshi's Million Bitcoin

Paradigm's Quantum Proof Design Could Save Satoshi's Million Bitcoin

Paradigm's PACTs proposal lets dormant Bitcoin holders prove key ownership privately, potentially protecting Satoshi's 1.1M BTC from quantum threats.

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Paul Sztorc's eCash Fork Sparks Developer Warnings About Bitcoin Airdrop Risks

Paul Sztorc's eCash Fork Sparks Developer Warnings About Bitcoin Airdrop Risks

Bitcoin developers warn against Paul Sztorc's eCash hard fork, citing replay attack risks, Satoshi coin reassignment, and dangers for BTC holders.

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Paradigm's New Proposal Could Let Satoshi Prove Bitcoin Ownership Without Moving a Single Coin

Paradigm's New Proposal Could Let Satoshi Prove Bitcoin Ownership Without Moving a Single Coin

Paradigm's PACTs proposal offers dormant Bitcoin holders a private way to prove key ownership against quantum threats without on-chain transactions.

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Paul Sztorc's eCash Fork Creates Security Risks Bitcoin Developers Warn Against

Paul Sztorc's eCash Fork Creates Security Risks Bitcoin Developers Warn Against

Bitcoin developers warn that Paul Sztorc's eCash fork exposes users to replay attacks and miner theft. Here's why the community is pushing back.

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Paradigm's Quantum Proof Proposal Could Save Early Bitcoin Addresses from Future Attacks

Paradigm's Quantum Proof Proposal Could Save Early Bitcoin Addresses from Future Attacks

Paradigm's PACTs proposal lets dormant Bitcoin holders privately timestamp ownership proofs, potentially protecting $75B+ in vulnerable coins from quantum threats.

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How to Configure IVPN for Bitcoin Node Security and Transaction Privacy

How to Configure IVPN for Bitcoin Node Security and Transaction Privacy

Step-by-step guide to configuring IVPN for Bitcoin privacy, including router setup for node protection and multi-hop for transaction security.

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Bitcoin Keeper Review 2026 and Why This Multisig Vault Beats Single-Key Storage

Bitcoin Keeper Review 2026 and Why This Multisig Vault Beats Single-Key Storage

Bitcoin Keeper offers free multisig vaults, inheritance planning, and hardware wallet support. Here's why serious holders choose it over single-key wallets.

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How to Verify Document Timestamps Using Simple Proof and Bitcoin

How to Verify Document Timestamps Using Simple Proof and Bitcoin

Learn to timestamp and verify documents on Bitcoin's blockchain using Simple Proof and OpenTimestamps. A practical guide for institutions.

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How to Set Up TapSigner NFC Card for Tap-to-Sign Bitcoin Transactions

How to Set Up TapSigner NFC Card for Tap-to-Sign Bitcoin Transactions

Complete TapSigner setup guide covering initialization, wallet pairing, signing your first transaction, and security practices for daily carry.

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BlueWallet Review 2026, Why This Bitcoin App Earns Its Swiss Army Knife Reputation

BlueWallet Review 2026, Why This Bitcoin App Earns Its Swiss Army Knife Reputation

BlueWallet combines on-chain tools, Lightning payments, and multisig vaults in one app. Our research-based review covers what works and where it falls short.

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Bitcoin's $80,000 Wall Is Pushing Coins Into Cold Storage at an Unusual Pace

Bitcoin's $80,000 Wall Is Pushing Coins Into Cold Storage at an Unusual Pace

Bitcoin faces heavy resistance at $80,000 while exchange withdrawals to cold storage hit multi-year highs. Here's what's driving the shift.

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Blockstream Jade Core Launch Brings Air-Gapped Security to Bitcoin Beginners

Blockstream Jade Core Launch Brings Air-Gapped Security to Bitcoin Beginners

Blockstream's $99 Jade Core hardware wallet simplifies Bitcoin self-custody for newcomers while maintaining institutional-grade security features.

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