> Google has the best security.

Care to elaborate?

Google was owned pretty hard in 2009 (Operation Aurora). Following that they put security front and center in a way that few other vendors do.

You can read my praise of ChromeOS here: https://news.ycombinator.com/item?id=41178525

To add a few, Chrome was the first browser to introduce process isolation: Every browser tab, every site (second-level domain) and every iframe runs in its own sandboxed process.

With that it's the only end-user software (alongside the other browsers) that actually is secure against Spectre and Meltdown. Operating systems only protect against Specre/Meltdown leaks between processes.

Google invented Certificate Transparency and Chrome enforces CT since years. Firefox added CT enforcement only a few days ago.

CT solves the following: For example, if a rouge Chinese Certificate Authority decides to issue a cert for google.com to the Chinese government for Man-in-the-Middle attacks, CT blows their coverand makes it known to everyone that the CA issued a fraudlent cert.