The secure monitor and kernel factually have no issues, though.Zero significant security issues *that we know of*. Remember how long it took for ntrboot to be discovered on the 3DS. It was so well hidden that nobody even knew it was there, much less knew that it was exploitable.
As for the bootrom, it's been publicly dumped for ages and we have the source code (at least some of it, anyway), it's been thoroughly searched.
Last edited by ZachyCatGames,