Attacks on Tech Firms Behind Most Third-Party Data Breach Victims
Infosecurity Magazine, Friday, October 23rd, 2026
Kroll finds 69% of breach victims were hit through a third party, and 79% of those through a compromised technology company.
Kroll's data breach report covering June 2025 to June 2026 found 69% of individual breach victims were affected by a third-party breach, and 79% of those traced back to a compromised technology company.
Tech firm incidents caused 60% of all breach victims, far ahead of insurance, finance and healthcare, even though tech was only the seventh most breached sector.
Finance and professional services were the most breached sectors at 20% each.
Among surveyed security leaders, 69% reported a breach in the prior year and 34% more than one, underscoring the need for stronger supplier risk management.