Archived version: https://archive.ph/vmEpv
Archived version: https://web.archive.org/web/20231224092642/https://www.fastcompany.com/91002831/us-water-utilities-hacked-cybersecurity
Archived version: https://archive.ph/vmEpv
Archived version: https://web.archive.org/web/20231224092642/https://www.fastcompany.com/91002831/us-water-utilities-hacked-cybersecurity
9999 would take longer to brute force.