操作安全

🔐 Deep Defense Guide | How to Build a 'Physical-Level' Security Barrier for Your Multi-Signature Wallet?
Warning of $27 million loss: As attacks escalate, defenses must penetrate into physical and operational levels.
✅ Build a 'Trust No Device' Multi-Signature System
1. Absolute purity of key generation
Each multi-signature private key should be generated on a brand new, offline device that has never connected to the internet (or a hardware wallet).
After generation, immediately permanently destroy any network hardware modules (such as Wi-Fi/Bluetooth chips) on that device, or permanently convert it to a 'signature-only machine'.
2. Physical isolation of the signing process
When signing, use offline QR codes or SD cards to transfer unsigned transaction data between the signing device and the networked transaction building device.
It is absolutely forbidden to use USB cables for direct connections or any network protocols that may transmit files.
3. Extreme control of devices and environment
Dedicated devices: The computers or mobile phones used for signing should only have the signing software and necessary system components installed; no other software should be installed, and absolutely no web browsing or email processing should occur.
Physical isolation: The room where the signing devices are stored should implement strict physical access control and network shielding.
💎 Ultimate Principle
For large assets, the security goal is not 'difficult to break', but rather 'physically impossible to be remotely breached'. Elevate your multi-signature scheme from 'software security' to 'hardware and process security' levels.
#多签安全 #硬件安全 #冷存储 #操作安全

🔓 $410 million warning: Phishing attacks have become the number one threat in Web3
In the first half of 2025, phishing attacks caused losses of about $410 million, becoming the most threatening form of attack. In the second quarter alone, 52 phishing incidents accounted for $400 million, half of the total losses for the season.
🔍 Attack methods upgraded
Precision phishing: Shifting from a broad net to targeted custom fraud for high-net-worth users
Cross-platform redirection: Spreading false links through social media, Discord, and other channels
Interface deception: Forging nearly perfect fake transaction pages to induce authorization
🛡️ Multi-layered protection plan
Operational level:
Enable hardware wallets to manage large assets
Set independent passwords for different accounts and enforce multi-factor authentication
Interactive level:
Carefully verify website domain names to avoid clicking on unknown links
Regularly use authorization query tools to check and revoke idle permissions
Team level:
Establish official information verification channels to timely disclose phishing alerts
Conduct social engineering drills for team members to enhance security awareness
💡 Key insights
In the Web3 world, personal operational security is as important as smart contract audits. A careless click on authorization can cause more fatal losses than complex code vulnerabilities.
#钓鱼攻击 #Web3安全 #操作安全

🚨 Exchange Security Alert | In-depth Analysis of Abnormal Trading Events in Bitget's Hot Wallet
💸 Event Retrospective
Last year, Bitget's exchange hot wallet experienced abnormal large transactions, with over $85 million flowing out in a single day. The monitoring system showed multiple addresses continuously transferring mainstream assets like ETH and USDT in a short period.
🔍 Security Analysis
Operational Risks: Vulnerabilities in internal private key management processes
Monitoring Gaps: Abnormal trading behaviors failed to trigger real-time alerts
Response Delays: Excessive time taken from discovering anomalies to freezing assets
📊 Industry Data
Security incidents in exchanges decreased by 35% year-on-year
But the proportion of internal operational risks increased to 42%
Hot wallet management remains the biggest security concern
🛡️ Protection Recommendations
✅ Implement multi-signature and threshold signature schemes
✅ Establish a tiered approval mechanism for trading limits
✅ Deploy AI-driven anomaly detection
✅ Conduct regular red-blue team drills
💡 Key Insight
"Exchange security is shifting from preventing external attacks to mitigating internal risks; a comprehensive operational security system is more critical than technical defenses."
#交易所安全 #热钱包管理 #操作安全