Data Breach
NTK Network Data Breach
533.0M records exposed • January 2021
Half a billion Facebook phone numbers leaked online. Hackers had scraped the data years earlier using a Facebook feature that let you search users by phone number.
What Happened
Phone numbers and personal data of 533 million Facebook users from 106 countries were found posted online. The data was scraped before Facebook patched the vulnerability.
Attack method: Facebook API scraping
What Data Was Exposed
Phone numbers, Facebook IDs, Names, Locations, Email addresses, Biographical data
Is your business exposed?
What to Do If You're Affected
- 1.
Check if your number leaked at haveibeenpwned.com
- 2.
Be wary of smishing and phone scams
- 3.
Consider removing phone number from Facebook
Lessons for Businesses
- • Scraped data can resurface years later
- • Phone numbers are valuable for fraud
- • Search features can be abused for data collection
Sources
Related Breaches
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