In online transactions of pirated video games, some people may use complex encryption techniques to obscure the transaction details and the information of both parties. Here are some possible methods: 1. **End-to-end encryption**: This encryption method ensures that only the sender and the receiver can decrypt the content of the message, and even if the message is intercepted, the information in it cannot be interpreted. Commonly used protocols include TLS or SSL. 2. **Virtual Private Network (VPN)**: Using a VPN can hide the user's IP address and geographical location, thereby increasing the anonymity of the transaction. VPN provides an additional layer of encryption for data transmission. 3. **Encrypted messaging service**: Use encrypted messaging services such as Telegram, Signal or WhatsApp to communicate transaction details. These platforms usually provide strong encryption to ensure the privacy of the message content. 4. **Anonymous network**: For example, the Tor network can help mask user identity and online activities. It passes Internet traffic through different relay servers to increase anonymity. 5. **Cryptocurrency**: Cryptocurrencies such as Bitcoin or Monero are used in many illegal transactions because they provide a certain degree of anonymity and are not easy to track. 6. **PGP Encryption**: Pretty Good Privacy (PGP) is an encryption program used to encrypt and sign emails, ensuring the confidentiality and integrity of information. 7. **Blockchain and Smart Contracts**: Although commonly used for legal transactions, blockchain technology can also be used to create anonymous and difficult-to-trace transaction records. It is important to note that these technologies are not illegal in themselves, and many have important applications in legal and secure communications. However, their use can also be abused for illegal activities, such as pirated transactions, which are generally not allowed by law, and participating in these activities may face legal consequences.