UK Cyber Litigation Costs Surge to £3.7bn in 2025 Amid Rising Cyber-Attacks

In 2025, cyber-attacks inflicted an estimated £11.7 billion in costs on large UK businesses, with shareholder litigation accounting for £3.7 billion of these losses. Direct costs from lost trading reached £5.4 billion. Gallagher and the Centre for Economics and Business Research provided these figures, indicating a significant rise in legal claims related to cyber incidents. The data highlights the growing financial exposure businesses face due to cyber threats, particularly in shareholder litigation. The trend suggests that as cyber-attacks become more prevalent, the associated legal repercussions are also likely to increase, prompting businesses to reassess their risk management strategies.

Key Points: • Cyber-attacks cost UK businesses £11.7 billion in 2025, with £3.7 billion from litigation. • Direct losses from trading disruptions were £5.4 billion, indicating severe operational impacts. • The rise in shareholder litigation reflects increasing financial exposure linked to cyber incidents.