I’ve often thought that the single most devastating cyberattack [would be] simply to simultaneously make every e-mail and text ever sent universally public. . . . . the fabric of society would instantly evaporate, every marriage, friendship and business partnership dissolved. I don't think it would be quite that bad. There are some people who lie to everyone, but there are also some people who are decent and honest.…
In this passage the author is using satire. Of course it wouldn't be that bad, but describing literally how it would be, wouldn't be that funny.
At any rate, that would be encouraging if it were true. I must admit, I do not have a threshold of cynicism beyond which I assume a sentiment is a joke. There seem to be arbitrarily depressing people out there.