Beware of pitfalls! A user suffered a loss of approximately 4 million yuan in assets due to purchasing a cold wallet on JD.com.

Slow Fog Technology recently revealed a shocking coin theft case: a user purchased a certain brand of hardware wallet through unofficial channels, and the 4.35 BTC deposited instantly evaporated. Investigations found that the device had been pre-initialized by an attacker before delivery — it’s like buying a safe that has already been preset with a password, and the scammer already has control over the mnemonic phrase. When the user thought they were safely depositing Bitcoin, the funds actually fell into the hacker's pocket.

⚠️ Self-rescue Guide

1. Verify the Channel

- Only purchase from officially certified channels, refuse third-party platforms' “low-price promotions”

- Check if the seal is intact, refuse damaged packaging

2. Firmware Verification (Key!)

- Force a reset of the device to generate a new mnemonic phrase upon first startup

- Verify the firmware signature using official tools (e.g., Ledger's Genuine Check).

3. Simulated Attack and Defense

- After depositing a small amount of assets, try to manually restore the wallet to verify the exclusivity of the mnemonic phrase

- Regularly check if the receiving address matches what the device displays

‼️ Blood and Tears Revelation

The ultimate vulnerability of blockchain security lies forever between human gullibility and operational inertia.

Wallets are an important weapon for protecting our assets, and we must not be tempted by small savings to purchase cold wallets from unofficial channels!

#安全