GlobalSign Code Signing Certificates use public key infrastructure (PKI) to ensure code integrity and authenticity by binding a developer's identity to their software. They prevent tampering by ensuring code has not been altered after signing and eliminate "Unknown Publisher" warnings. The certificates support multiple platforms including Windows, Mac OS, and others, and are compatible with tools like Microsoft SignTool. Extended Validation (EV) certificates offer enhanced security with strict vetting, hardware token storage, and timestamping to maintain signature validity beyond certificate expiration.
