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
There's no such thing as "quantum". Any so-called quantum computer is simply a fast computer with traditional advantages such as better cooling, etc. Instead of spewing links to PR videos, explain how exactly "quantum" works and what makes a "quantum computer" different from other computers? Hard mode is on though, your explanations have to show examples of how quantum computing could possibly work, not just theoretical equations "interpreted" into words with zero proven real world examples.