Comment If seriously (Score 1) 314
Use at least 2 operating systems, at least 2 browsers, at least 2 office applications, etc. Because if there is one and only one monopoly software or hardware vendor, it is much easier for it to get corrupted. A realistic competition is the best measure against corruption.
You raised serious questions of the civilization's scale. As any serious problem the problem of security can be solved by a systematic work and communication, at least partially. It will always be a running battle between good and evil.