Previously, we only displayed advisories from our supported ecosystems. We then expanded to have an Unreviewed category for advisories that do not belong to those ecosystems, and we've been auto-publishing new advisories to this category since.
We've now backfilled our database to include all historical advisories from prior years, so you can find any advsiory you may be searching for regardless of publication date. This brings us to over 160 thousand advisories, and counting! You can browse them by clicking the "All unreviewed" button or by searching "type:unreviewed" in the search bar.