← Truecaller

2019 Truecaller — 299M records

2019 299.1M records affected Share on X

Data compromised

Phone numbers, names, other PII

Technical writeup

Truecaller, the caller ID and spam blocking app, had user data offered for sale on the dark web. The breach allegedly exposed 299 million records including phone numbers, names, and other data. Truecaller initially denied the breach.

Root cause

Unknown; data offered for sale

References