[charleslmunger]

Interestingly, I searched "android securerandom" on both, and Google has the first result as the javadoc and the second as a blog post explaining a serious vulnerability in it and how to mitigate it.

The same search on samuru has no results about the vulnerability.

[drakaal]

Do the search again. We have two indexes, a shallow one for things we have never seen and a deep one for things people have searched for. The results have changed likely since your first search. This would not be an issue if we had only 15% new searches.