Sector

Data breaches in technology and telecom

199 organisations in technology and telecom with a confirmed or reported breach on the tracker, newest first.

Last 30 days: 23
2026 so far: 89
On record: 199
Median days to tell: 135

From the day a breach began to the day it was first reported, a median of 135 days, over the 124 breaches in this sector whose notice gives a start date.

What was taken most often

Names62
Email addresses39
ID numbers34
Home addresses32
Dates of birth31
Passwords and logins23

The number of breaches in which each kind of data was exposed.

The largest

Every breach, newest first

Show 179 more

How the sector is decided

A sector is read from the organisation’s own name (“Mercy Hospital”, “First National Bank”, “Lincoln School District”) and from the register it filed with (every notice on the US health department’s breach portal is a health organisation’s). A name that says nothing has no sector, and a name can mislead now and then, so these figures are a floor. Found one in the wrong place? Tell us.

Follow breaches in technology and telecom (Atom feed) · Other sectors: Healthcare, Education, Government, Insurance, Banks and finance, Law and accounting, Travel and hospitality, Retail and e-commerce, Industry, energy and transport, Non-profits and associations

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Accuracy audit · For journalists · Found a mistake? Tell us and we correct it.