Mystery Vista Heads

Stories have been popping up recently about a tiny picture of three people who were embedded into the Vista DVD hologram. Originally people thought this was an Easter Egg, but it turns out to be a security measure:

https://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9024722&source=rss_news50

Only two questions remain: 1) Who are these three people? 2) Why didn't they use a picture of me instead?