Three, the social engineering database industrial chain: the complete process from information theft to monetization.
Social engineering databases have formed a complete industrial chain, including information acquisition, transmission, and monetization, posing particular dangers to cryptocurrency players.
1. Origin: From debt companies to the black market in crypto.
In the early days of the Internet, platforms did not pay enough attention to cybersecurity, and hackers exploited vulnerabilities to penetrate website backend databases, becoming the first-generation source of social engineering databases.
Database dumping: Infiltrate valuable websites (like small exchanges, DeFi projects) to steal entire databases.
Credential stuffing: By comparing multiple leaked databases, matching the same account and password, attempting to log in to other platforms in bulk. Since many users tend to use the same password, the success rate is extremely high.
Data washing: Filter out the most valuable data, such as wallet addresses, KYC information, and email addresses.
2. New trend: Insiders targeting cryptocurrency players
As companies pay more attention to cybersecurity, it has become harder to steal information from the outside, hackers are turning to breach from the inside.
Insider roles: Telecom operators, exchange employees, logistics company workers, and recruitment industry practitioners exploit their positions to access information.
Rewards: Providing a piece of information can earn between 50-500 yuan, with ordinary employees earning over 400,000 annually, turning 'side jobs into main jobs'.
Case Study: In November 2024, 2.07 million KYC data from a small exchange was leaked, and 80,000 user data from a blockchain company in Beijing was leaked, all involving insiders.
3. Industrial chain division of labor: Information sources, brokers, distributors.
Information sources: Insiders or hackers provide raw data.
Brokers (intermediaries): Connect information sources and distributors, organizing, categorizing, and distributing information.
Distributors: Sell information layered with price increases.
The wholesale price of each source of information is only 50 yuan, but after multiple layers of distribution, it can sell for thousands of yuan.Information about cryptocurrency players (like wallet addresses + trading habits) is especially valuable on the dark web and may be used for targeted phishing.
4. Monetization methods: High-risk scenarios for cryptocurrency players
Financial scams: Pretending to be 'investment experts' or 'official customer service', tricking you into transferring to fake wallet addresses.
Example: Someone impersonated Binance customer service, accurately stating your trading records to trick you into entering your seed phrase.
Targeted extortion: By leaking wallet addresses and KYC information, threatening to disclose your holdings or personal information.
Phishing attacks: Using your social information to send fake airdrop links or malicious contracts, directly stealing assets.
5. Public queries: A derived model of insiders.
Definition: Authorized individuals obtain information from real-time updated government or corporate databases, such as bank employees, archive staff.
Characteristics: Strong real-time nature, low error rate, high targeting, but high costs (single queries starting at four-digit prices).
Threats to cryptocurrency players: If your phone number or email is checked, it may be linked to your wallet address and even used to forge identity for KYC reset.
Four, why is it hard to defend against? Privacy pain points for cryptocurrency players.
1. User habits: Privacy for convenience.
Even cryptocurrency players often compromise for convenience. For example, registering with a real phone number to participate in an airdrop; binding an email directly instead of using an anonymous account for trading convenience.
The trend of informationization is irreversible, and the sharing of personal data has become the norm.
2. Profit-driven: The cryptocurrency sector is 'fat meat'.
50% profits lead people to take risks, 100% profits trample on the law, 300% profits dare to risk their lives.
Information about cryptocurrency players is highly valuable on the dark web, attracting countless black market practitioners.
3. Platform policies: Real-name system is a double-edged sword
Real-name system (KYC) reduces money laundering and illegal activities, but constraints on platforms and data providers still need improvement.
Many small exchanges have inadequate security measures, becoming a breakthrough point for hackers and insiders.
4. Economic background: Online economy surged after the pandemic.
After the pandemic, more economic activities have shifted online, leading to a surge in cryptocurrency trading volume. The benefit is efficiency and convenience, but the downside is that information leaks are more easily spread in bulk.
Five, strategies for cryptocurrency players: Protect privacy from being 'unboxed'.
Although it is impossible to completely avoid information leaks, the following suggestions can increase the difficulty and cost for thieves, reducing risk, especially suitable for cryptocurrency players:
Anonymization operations:
Use cold wallets to store assets, avoiding holding large amounts in hot wallets.
When participating in projects or socializing, use anonymous IDs to avoid exposing your real identity.
Do not disclose transaction records or wallet balances on public platforms.
Password and account management:
Set different passwords for different platforms to avoid credential stuffing.
Use password managers to generate complex passwords and change them regularly.
Regularly change contact information:
Regularly change phone numbers or emails to reduce information connections.
Avoid binding wallets or exchange accounts with real phone numbers; temporary emails or virtual numbers can be used.
Information isolation and smoke screens:
Use different IDs, avatars, and descriptions on different platforms to confuse real information.
Create 'smoke screens', such as registering with fake addresses or aliases for unimportant services.
Cautious socializing and sharing:
Avoid revealing sensitive information during discussions in Telegram and Discord groups.
Set group visibility for Moments to avoid publicly sharing on-chain related information.
Be wary of phishing and malicious links:
Do not click on airdrop links or contract addresses from unknown sources.
Regularly check wallet permissions to ensure no unauthorized access to malicious contracts.
Pay attention to privacy policies:
When registering on exchanges or DApps, read the privacy terms carefully to understand the scope of data usage.
Prioritize participating in activities on decentralized, no KYC platforms.
Use privacy tools:
Use VPNs or Tor to hide your IP address.
Consider using privacy coins (like Monero, Zcash) or mixing services (like Tornado Cash) to protect transaction privacy (pay attention to compliance).
Cryptocurrency players, raise privacy awareness and safeguard asset security.