Is this written by the Russians? The Chinese? Are you kidding? iPhone or Android? They are both highly porous and highly perforated. Gmail? Chrome?

Here is some on secure browsers: https://www.techworld.com/security/best-8-secure-browsers-32...

Boeing Black? https://economictimes.indiatimes.com/slideshows/tech-life/5-...

... just a little work would give something actually secure. This is like playing charades with guns.