The Nintendo Switch 2 Mario Kart World Bundle is once again on sale for $50 off at Amazon, Target, and Best Buy. Normally $500, the console bundle is discounted to $450 as a last-minute holiday deal.

Ronald Deibert and his research group, the Citizen Lab, have rigorously worked to unveil alarming digital threats for the past two decades. Now, he warns, this kind of work is under threat. In April ...