While ESXi 6.7 is a legacy version (having reached on October 15, 2022), it remains popular for home labs and older hardware. What is found on GitHub?

Using keys from unofficial GitHub repositories can lead to "phone-home" malware or compromised systems.

: Many repositories that previously hosted license keys or ISOs have had that content removed for violating GitHub's Terms of Service Lifecycle & Support Status VMware ESXi - endoflife.date

The "story" of VMware ESXi 6.7 license keys on GitHub is essentially a record of the community’s attempt to maintain older virtualization labs after official support and free licensing options shifted. The GitHub Repository Phenomenon