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Prior to Covid-19, most companies perceived their worst-case cybersecurity scenario as a computer virus that would shut down company computer systems. In fact, just the opposite happened: a human virus has forced virtually entire workforces online, making companies more reliant than ever on their systems. The stakes of protecting those systems from a cyberattack could not be higher. In the words of the old American Express commercial: “What will you do? What will you do?”