Tamper-evident seals are essential for maintaining the security and integrity of arcade machines, preventing unauthorized access, cheating, or component theft. The most common types include security labels or stickers, which are adhesive seals that leave a "VOID" message or residue when removed, indicating tampering. These are often placed over screw holes or cabinet seams. Another type is anti-tamper screws, such as Torx or spanner heads, which require specialized tools for removal, deterring casual interference. Additionally, plastic or metal security tags that break upon removal are used for high-risk components like coin doors or PCB access points. Some arcades also employ numbered seals for tracking and audit purposes, ensuring each machine's history is documented. These seals help arcade operators protect their investments and maintain fair gameplay by making tampering easily detectable.