No security is possible online.

Most people say to use Kali Linux, which is good advice but even it does not claim to be an actually secure operating system, since it has zero security/defense features, much less than most versions of Linux.

Qubes is also often touted as "reasonably secure" because it partitions everything into VMs, but what the creator (female) didn't realize, and the developers didn't have the heart to tell her, is that attackers are likely to exploit one of the numerous exploits constantly being discovered in the Xen hypervisor used by Qubes should they wish to attack a Qubes machine.

Other than the above and a few memes and scams it appears that no other OS is recommended for security, rendering the entire concept of "computer security" a scam akin to the medical industry where "cures" merely suppress symptoms momentarily.

>>19
I work for the NSA (National Security Agency) of the US and I can tell you for sure that all non-quantum encryption is already completely broken by our supercomputers.
Our researchers have even broken most currently known quantum algorithms too.

Our defense guys are working on something called ``multidimensional encryption'', which is something civvies haven't even heard of yet.
It's gonna blow your mind when you realize we can do one-time pads with ourselves in parallel dimensions.
It's completely impossible to break because we're not dumb enough to share extradimensional keys with unauthorized agents, and nobody knows how to physically travel between dimensions yet, so no army on earth could seize our keys forcefully.