Capital One data breach affected over 106 million people, 140,000 Social Security numbers, 80,000 bank account numbers,1,000,000 Social Insurance Numbers ... The breach had taken place about 4 months back however it took some time before the breach was realised, in-fact it took an external tip for Capital One to realise something had happened.

The legal case built was quite interesting. Before I share the legal case link heres a short summary just in-case you dont know all the deatils of the breach.

Short Synopsys Of What Happened:

  • Paige Thompson copied and downloaded 700 different S3 buckets 
  • Paige was able to access a server that had a misconfigured firewall
  • She accessed EC2 Instance in the server through an opening in the firewalls
  • Since the Server's IAM Role permitted the access to S3 of 700+ Buckets, she could access them
  • Now she just ran the "List Buckets" command and the "Sync" command from the AWS CLI

>>Here is a link to the legal case that has been built: Legal Case Link

Learnings From The Breach:

This breach might cost Capital One $150 Millions and on top of that the loss of brand/face ... 

  • Audit your security regularly
  • Monitor misconfigured infrastructure like "open S3 buckets"...etc
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Priyanka, Co-Founder and Editor, CISO Platform Breach Intelligence, leads our threat intelligence and incident analysis efforts, providing actionable insights to the global cybersecurity community. With extensive experience in cybersecurity leadership and breach analysis, she specializes in translating complex technical threats into strategic intelligence for security executives.

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