There are many current and prospective positive aspects of nanotechnology. However, while we look forward to its future successes, we need to keep our eyes open and be prepared for what will really be a future shock: that quantum computing—an inevitable part of nanotechnology—will enable future folks to read all our encrypted messages and thus, learn everything that we wanted to keep secret. This will be really the Judgement Day when all our sins will be open to everyone. How we will react to it? Will this destroy our civilization? Let us hope that the civilization will survive—as it survived many calamities so far. But to survive, we need to be prepared, we need to know what lies ahead. The earlier we will start seriously thinking about this future shock, the better prepared we will be.