2011 — Massachusetts Government: Over 1,500 departmental computers were infected…

2011 210.0K records affected

Technical writeup

May 2011. Over 1,500 departmental computers were infected with the W32.QAKBOT virus, a malicious program which ‚Äúdownloads additional files, steals information, and opens a back door on the compromised computer‚Äù.

Root cause

Hacked

References

http://www.nbcnews.com/id/43086769/ns/technology_and_science-security/t/huge-data-breach-puts-risk/#.XAfhPhP7TUI