Data Breach
Mailchimp Data Breach
133 records exposed • January 2023
Hackers tricked a Mailchimp employee into giving them access to internal systems. This was the third time in a year that Mailchimp was breached using similar tactics.
What Happened
Mailchimp suffered its third breach in 12 months when attackers socially engineered an employee to gain access to internal tools. 133 customer accounts were accessed.
Attack method: Social engineering attack on employees
What Data Was Exposed
Customer names, Email addresses, API keys
Is your business exposed?
What to Do If You're Affected
- 1.
Rotate Mailchimp API keys
- 2.
Review account for unauthorized changes
- 3.
Enable additional authentication methods
Lessons for Businesses
- • Repeated breaches indicate systemic security issues
- • Social engineering defenses need continuous improvement
- • Third-party marketing platforms are frequent targets
Sources
Related Breaches
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