Human Error Drives Cyber Losses Amid AI Threats in 2026

• •85% of cyber losses in H1 2026 stemmed from human error, mainly phishing.
• •Ransomware accounted for 73% of financial losses but only 5.8% of total claims.
• •Swiss Re anticipates cyber insurance premiums will reach USD 16.4 billion in 2026.

In the first half of 2026, over 85% of cyber losses were due to human error, primarily from phishing and social engineering attacks. Despite the rise of AI, no AI-specific attack vectors caused losses during this period. Ransomware, while costly, accounted for only 5.8% of total claims, indicating that traditional methods remain prevalent. Swiss Re forecasts a continued growth in cyber insurance premiums, reaching USD 16.4 billion in 2026. The insurance sector is adapting to AI's role in amplifying existing risks rather than introducing new ones. Organizations are urged to strengthen their cybersecurity measures to mitigate these foundational risks. The data suggests that while AI is reshaping the threat landscape, it is currently enhancing the effectiveness of established attack methods.