Our starting point was to describe the general changes in technostress, work exhaustion, and SMC at work. We considered workers as border crossers who made transitions between the domains of work and family (Clark, 2000). We expected the impact of the crisis to be greatest among those people who were communicating extensively through social media at work (H1: social media burden hypothesis). However, some people had used social media at work prior to the crisis and, hence, were more prepared for the sudden change to remote work and working online via social media. We expected the impact of the crisis to be weaker among those individuals (H2: well-prepared hypothesis). Both formal and informal SMC at work were analyzed.