Category

Date

Aug 15 2013 - Aug 15 2014
Expired!

Time

8:00 am

Yahoo Data Breach

  • Impact: 3 billion accounts compromised.
  • Details: Two breaches attributed to Russian agents. Stolen information included names, email addresses, and security questions. It remains the largest data breach in history.
  • How: Hacked through vulnerabilities in Yahoo’s systems, later exacerbated by poor disclosure practices​