Data leak

National General / Allstate Insurance Quoting Portal Data Breach

πŸ“… 2020-01-01
Primary Source β†—

Incident Details

National General (later acquired by Allstate) suffered two sequential data breaches via its online auto insurance quoting portals. First breach (2020): exposed driver’s licence numbers of ~12,000 individuals including 9,100 New Yorkers. Despite discovering the breach, National General failed to notify impacted consumers or fully remediate the underlying vulnerability. Second breach (2021): a larger attack exploited the same unpatched flaw, exposing 187,000+ consumers including 155,000 New Yorkers’ driver’s licence numbers. New York AG Letitia James sued National General and Allstate on March 10, 2025, seeking financial penalties and security improvements. Separate settlement: NY AG secured $975,000 from another auto insurer. Notable for the failure-to-notify after the first breach enabling the larger second breach. Insurance sector; application security failure.

Technical Details

Initial Attack Vector
Application vulnerability in online quoting websites that displayed full driver's licence numbers in plain text with minimal user input; scraped by automated attackers

Timeline

  1. 2020-01-01 Breach occurred
  2. 2025-03-10 Publicly disclosed