China is the most active and persistent cyberthreat to American critical infrastructure, but that threat has changed over the last two decades, the Cybersecurity and Infrastructure Security Agency (CISA) says. “I do not think it is possible to design a foolproof system, but I do not think that should be the goal. The goal should be to make it very difficult to get in,” Cris Thomas, sometimes known...

Conservatives on social media blasted former President Obama after his first speech since the presidential election in which he lamented polarization in politics.  During a speech Thursday at the Obama Foundation’s Democracy Forum, Obama made the case that if “one side” attempts to cement “a permanent grip on power” through “suppressing votes,” “politicizing” the military or weaponizing the judiciary and criminal justice system to target opponents, “a line has been...