2013 — Year in review
Years are assigned by disclosure date, falling back to discovery, then occurrence date.
Breach Census recorded 187 confirmed incidents in 2013. That is up from 135 in 2012, a rise of 52 incidents (38.5%). Incidents are assigned to a year by disclosure date, falling back to discovery, then occurrence date, and totals for the most recent years can still grow as new sources are confirmed and published.
Manufacturing was the most common sector, with 2 of the 5 incidents that had a sector assigned.
The most-reported jurisdictions were US-CA (166), US-WI (12), and US-DE (9).
By sector
| Sector | Confirmed incidents |
|---|---|
| Unclassified | 182 |
| Manufacturing | 2 |
| Professional Services | 1 |
| Retail | 1 |
| Transport | 1 |
Top jurisdictions
| Jurisdiction | Confirmed incidents |
|---|---|
| US-CA | 166 |
| US-WI | 12 |
| US-DE | 9 |
Questions and answers
How many confirmed data breaches were disclosed in 2013?
Breach Census recorded 187 confirmed data breach incidents for 2013, assigned by disclosure date, falling back to discovery, then occurrence date.
Which sector reported the most breaches in 2013?
Manufacturing reported the most confirmed breaches in 2013, with 2 of the 5 incidents that had a sector assigned.