Law enforcement officials, government workers and cyber-security professionals are preparing to swoop in, track and hopefully block anyone attempting a cyberattack aimed at destabilizing the U.S. presidential election. The possibility is slight, with risks lessened by the fractured, pre-digital nature of the national voting apparatus. Still, fears that hackers — perhaps from Russia — could instill doubts about the voting process via attacks on the Internet infrastructure have put the cyber-security community on guard. In a way, they are girding for war, but the fronts are multiple and decentralized. Although many are keeping low profiles, we know about some.