'Facebook is clearly aware that losing its chief security officer and dissolving its dedicated security team, in the middle of all that’s going on, is not a great look. So many of the company’s statements today are clearly designed to address obvious concerns that arise.
“We expect to be judged on what we do to protect people’s security, not whether we have someone with a certain title,” a spokesperson said. In another statement, Facebook said it is “investing heavily in security to address new types of threats” and that its new security structure has “helped us do more to keep people safe.”'
Source: https://www.theverge.com/2018/8/1/17640852/facebook-cso-alex...
Edit: people take my comment to mean it won't be a big deal. It will be. However, not on the same scale of taking out the power grid, or the water system, which would lead to hundreds or thousands of deaths. Facebook is not critical infrastructure.