Cyberpress

17.5 Million Instagram Accounts Exposed in Data Breach

First seen 10 Jan 2026, 16:48 UTC • Hindustantimes

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A data breach has compromised the personal information of approximately 17.5 million Instagram users, with sensitive details now circulating on the dark web. The incident was reported by cybersecurity firm Malwarebytes, highlighting significant risks to user privacy and account security.

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Attack Flow

11 entities, 11 inferred relationships (STIX 2.1).

Technique (3)

Data Breach
Phishing
T1566 - Phishing

Organization (3)

Anthropic
Malwarebytes
Meta

Indicator (1)

ht.com

Affected Platform (2)

Instagram
Instagram API

Tool (2)

BreachForums
Claude

Relationships

Data Breach targets Instagram
Data Breach targets Instagram API
Phishing targets Instagram
Phishing targets Instagram API
T1566 - Phishing targets Instagram
T1566 - Phishing targets Instagram API
BreachForums related to Anthropic
BreachForums related to Malwarebytes
BreachForums related to Meta
BreachForums related to ht.com
BreachForums related to Claude

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Anthropic Malwarebytes Meta Instagram Instagram API Data Breach Phishing BreachForums Claude

17.5 Million Instagram Accounts Exposed in Data Breach

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