117 million users breached on professional networking site


In 2012, 73% of their customers' password were stolen from the largest professional social networking site, impacting over 117 million user accounts.

Storage of the passwords was not particularly secure, resulting in security researchers being able to unencrypt 90% of them within 72 hours. Analysis of the passwords provides interesting insights into user’s typical password use as well as how those passwords are shared across a variety of their accounts.

It is alleged that the hack was carried out by a Russian hacker who has been arrested. The subsequent FBI investigation and legal proceedings have even led to diplomatic tensions between the US and Russia.

In February 2015, a settlement was reached related to this incident.

Book a consultation

Want to discuss this case? You can purchase a 30 minute conference call with our analysts to discuss this case and the implications it has for your organisation. Just select the time and date that works for you:


  • LinkedIn Corporation

We've done the analysis so you can make the decisions

When purchasing a minimum of 5 Case Studies
$699.99 if buying less than 5.

  • Detailed cause & effect analysis
  • Lessons learnt catalogued
  • Preventive controls extracted
Add to Cart
Heads up! Want to try before you buy? You can download our FREE demo case study here