Another Ransomware Outbreak Is Going Global
Maersk is down. Their main site says:    Maersk IT systems are down

    We can confirm that Maersk IT systems are down across multiple sites
    and business units due to a cyber attack. We continue to assess the
    situation. The safety of our employees, our operations and customer's
    business is our top priority. We will update when we have more information.[1]

Maersk is the largest shipping company in the world. 600 ships, with ship space for 3.8 million TEU of containers.  (The usual 40-foot container counts as two TEUs.) If this outage lasts more than a few hours, port operations worldwide will be disrupted.[1] http://www.maersk.com/en