What is a Harvest Now Decrypt Later attack?

HNDL is when attackers record encrypted data today, knowing they can decrypt it later when quantum computers become capable. Your current Bitcoin transactions are being stored for future attack.

Is my Bitcoin already being harvested?

Almost certainly yes. Intelligence agencies and sophisticated attackers are known to record and store encrypted traffic. Bitcoin transactions broadcast over the internet are included in this collection.

Can I protect against HNDL attacks?

The only protection is using quantum-resistant cryptography NOW, before your transactions are recorded. Once harvested, the data is stored forever waiting for decryption.

🎯 Harvest Now, Decrypt Later

Your Bitcoin Is Already at Risk

📡 How HNDL Attacks Work

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Step 1: Intercept

Attackers capture encrypted traffic from internet backbone, ISPs, exchanges

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Step 2: Store

Encrypted data stored in massive data centers for years or decades

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Step 3: Wait

Wait for quantum computers to become capable of breaking encryption

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Step 4: Decrypt

Run Shor's algorithm—all historical data decrypted instantly

₿ What's Being Harvested from Bitcoin

Public Keys: Exposed when you send transactions (~4M BTC exposed)
Transaction Metadata: IP addresses, timing, amounts
Exchange Communications: Login credentials, API keys
Wallet Downloads: Associated with your IP

⚠️ This Is Already Happening

NSA Utah Data Center

1.5 million square feet of data storage. Purpose: store intercepted communications.

China's Great Firewall

Inspects and stores all traffic passing through Chinese internet infrastructure.

GCHQ Tempora Program

UK intelligence buffers massive amounts of internet traffic for later analysis.

🛡️ The Only Protection

Use quantum-resistant cryptography NOW—before your transactions are harvested:

Download SynX Wallet