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Massive Instagram Data Breach Exposes Personal Details of 17.5 Million Users

ID: 9ba2ed55-9c1b-5ca3-852a-612ed0d17915

STIX ID: report--9ba2ed55-9c1b-5ca3-852a-612ed0d17915

Feed Name: GBHackers

Threat Score
72/100

Date Published: 2026-01-10

Date Updated: 2026-04-22

Author: Gurubaran

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A dataset of 17.5 million Instagram accounts containing usernames, full email addresses, phone numbers and partial locations was advertised on dark-web marketplaces after being scraped via public APIs and public profiles; Malwarebytes confirmed the leak and users have reported genuine password-reset notifications indicating active exploitation. The exposed PII enables credential stuffing, SIM swapping and targeted phishing, and observers note the incident highlights API security weaknesses in Instagram/Meta.

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