For the second time in recent months, MailChimp has been the victim of a cyberattack. Hackers gained access to a tool used by the company’s customer support and account management teams, exposing the personal information of dozens of customers.
According to MailChimp, hackers gained access to an internal support and account administration tool, allowing the attackers to access the data of at least 133 customers. The attack was allegedly discovered on January 11, when an unknown and unauthorized person accessed the firm’s support tools.
Mailchimp stated that the hacker attacked its employees and contractors with a social engineering attack, in which someone manipulates private information, such as passwords, via phone, email, or text. The hacker then used the compromised employee passwords to gain access to data on 133 Mailchimp accounts, about which the company was notified.
“After we identified evidence of an unauthorized actor, we temporarily suspended account access for Mailchimp accounts where we detected suspicious activity to protect our users’ data,” reads a statement about the security incident. “While we do not share customer information as a matter of course, we can share that no credit card or password information was compromised as a result of this incident,” MailChimp said.
The WooCommerce eCommerce plugin for WordPress appears to be one of the customers affected by the breach.
The sources for this piece include an article in BleepingComputer.