Unauthorized score manipulation in arcade machines can undermine fair play and damage the reputation of gaming establishments. To combat this, several effective strategies can be implemented.

1. Secure Hardware Design: Use tamper-proof enclosures and locks to prevent physical access to internal components. Anti-tamper seals and reinforced cabinets deter unauthorized modifications.

2. Encrypted Software: Implement encrypted firmware and secure boot processes to prevent code injection or hacking. Regular software updates can patch vulnerabilities.

3. Score Verification Systems: Integrate real-time score validation with cloud-based or offline databases to detect anomalies and flag suspicious activity.

4. Surveillance and Monitoring: Install cameras and audit logs to track gameplay and identify potential cheaters. Staff training can help spot irregularities.

5. Player Authentication: Require player logins or RFID cards to link scores to verified accounts, reducing anonymous cheating.

By combining these measures, arcade operators can create a secure environment that discourages score manipulation and ensures a fair gaming experience for all players.