While bushfires have been an important part of Australia’s ecology, some scientists have expressed concern that the season is getting longer. The drought gripping parts of Australia has created hazardous conditions in many regional communities, where some residents have complained that insufficient back-burning has taken place during the winter months, leaving a fuel load of fallen trees and undergrowth.

An internal email seen by Reuters said Pemex was targeted by “Ryuk,” a strain of ransomware that experts say typically targets companies with annual revenue between $500 million and $1 billion.