Credential Abuse Drives Cyber Insurance Risk and Breaches

• •80-85% of users reuse passwords, increasing vulnerability to credential attacks.
• •Credential abuse is the most common breach vector, according to Verizon's 2026 report.
• •Insurers are adjusting premiums based on organizations' ability to secure credentials.

Credential abuse is a leading cause of cyber insurance claims, with 80-85% of users reusing passwords across multiple accounts. This widespread reuse makes organizations vulnerable to attacks, as compromised credentials are quickly available on the Dark Web. The 2026 Data Breach Investigations Report highlights that password-spraying is a common attack method, with 97% of identity attacks involving this technique. The rise of infostealer malware and sophisticated phishing campaigns exacerbates the issue, allowing attackers to gain access to sensitive information. Insurers are adjusting their underwriting decisions based on these risks, leading to higher premiums for organizations that fail to secure their credentials. The stealthy nature of these attacks often results in prolonged dwell times, increasing the severity of claims. Organizations are urged to improve their credential management practices to mitigate these risks.