Networked arcade machines handle sensitive data such as player information, high scores, and payment details, making robust encryption essential for security. The most common encryption types include AES (Advanced Encryption Standard) for protecting stored data like user profiles and game progress. This symmetric-key algorithm uses 128-bit or 256-bit keys to secure data at rest within the machine's storage. For data transmitted over networks, SSL/TLS protocols encrypt communications between arcade machines and central servers, safeguarding online interactions and financial transactions. Additionally, disk encryption technologies like BitLocker or hardware-based solutions protect the physical storage from unauthorized access. Some systems also implement RSA encryption for secure key exchanges during initial connections. These encryption methods help arcade operators comply with regulations like PCI DSS and protect against data breaches, ensuring player trust and operational integrity in gaming environments. Regular updates and key management are crucial for maintaining this security framework.