A growing number of mobile Internet outages were caused by bugs as networks become more software dependent. 90 big outages affected fixed and mobile networks across Europe last year, according to a report published by Enisa. Hardware failures, power cuts and software misconfigurations were other common causes of mobile outages. Outages caused by fire and heavy snowfall had the longest duration at 86 hours and 62 hours, respectively. The difference was partly due to the fact that some of the affected components in mobile networks were more centrally located.”]