×
Thursday, May 22, 2025

Email marketing firm hacked to steal crypto-focused mailing lists - BleepingComputer

What you need to know:
Email marketing firm Klaviyo suffered a data breach on August 3rd.
Hackers gained access to internal systems after stealing an employee's credentials via a phishing attack.
Hacker downloaded marketing lists used by cryptocurrency-related accounts, and for Klaviyo product and marketing updates.
Stolen data includes customers' names, addresses, emails, and phone numbers.
Threat actors are already trying to gain access to the stolen data.
Email marketing firm Klaviyo disclosed a data breach after threat actors gained access to internal systems and downloaded marketing lists for cryptocurrency-related customers.
Klaviyo says the breach occurred on August 3rd after hackers stole an employee's login credentials in a phishing attack. These login credentials were then used to access the employee's account and internal Klaviyo support tools.
Using the internal tools, the threat actors downloaded marketing lists for thirty-eight customers who are in the cryptocurrency...



Read Full Story: https://www.bleepingcomputer.com/news/security/email-marketing-firm-hacked-to...

Your content is great. However, if any of the content contained herein violates any rights of yours, including those of copyright, please contact us immediately by e-mail at media[@]kissrpr.com.