System disruptions caused by cyberattacks, disasters and other events
First written in FY2016. 2 of 4 entries say "Restated". Latest entry: FY2025.
BroadBand Tower moved to the "Worse" side of this theme in 2026, the same year as the typical company in this theme.
The whole theme swung hardest in 2026: 16 of 83 companies on the "Worse" side.
9 other companies' latest entry also says "Materialised".
- FY2025MaterialisedAnnual report
「Although we had strengthened our cybersecurity measures, we were subjected to a cyberattack in December 2025. We will therefore continue to treat cybersecurity as an even more important management priority and work to introduce advanced security tools, enhance our operational framework, rebuild our management framework based on a zero-trust approach both inside and outside the company, and strengthen and improve our risk management framework.」
Regarding system disruptions and other issues caused by cyberattacks that had previously been disclosed as risks, the company stated that it had actually been subjected to a cyberattack in December 2025. It did not state that a system shutdown or information leakage had occurred. - FY2018RestatedAnnual report
「If system failures occur due to unpredictable events such as cyberattacks, system or hardware malfunctions, power shortages or large-scale blackouts at electric utilities, earthquakes far exceeding the assumed magnitude, typhoons, floods and other natural disasters, war, terrorism or accidents, the group's results could be affected.」
The company continues to identify the risk of system disruptions caused by cyberattacks, equipment failures, power outages, natural disasters and other events. - FY2017RestatedAnnual report
「If system failures occur due to unpredictable events such as cyberattacks, system or hardware malfunctions, power shortages or large-scale blackouts at electric utilities, earthquakes far exceeding the assumed magnitude, typhoons, floods and other natural disasters, war, terrorism or accidents, the group's results could be affected.」
The company describes various business continuity measures while continuing to identify the risk of system disruptions caused by cyberattacks, equipment failures, power outages, natural disasters and other events. - FY2016First statedAnnual report
「If system failures occur due to unpredictable events such as cyberattacks, system or hardware malfunctions, power shortages or large-scale blackouts at electric utilities, earthquakes far exceeding the assumed magnitude, typhoons, floods and other natural disasters, war, terrorism or accidents, the group's results could be affected.」
The company describes measures including earthquake resistance and seismic isolation, backup power supplies and network redundancy, while identifying the risk of disruptions caused by factors exceeding its assumptions.