Although it's unclear what exactly it is that's sparked this recent increase, most of the threats appear to be coming from anonymous accounts on social media.
Maersk had already raised its 2024 profit forecast in May, June and August, as the Red Sea conflict was having a larger than previously expected impact.
In September, the National Transportation Safety Board issued an “urgent” recommendation to the FAA about a problem with rudders that pilots use to steer certain Boeing 737s after landing.