Hackers have breached the infrastructure of Volusion, a provider of cloud-hosted online stores, and are delivering malicious code that records and steals payment card details entered by users in online forms.
The most notable compromise is the Sesame Street Live online store, which has been taken down earlier today after another journalist reached out.
At the time of writing, the malicious code is still on Volusion's servers and is still being delivered to all of the company's client stores.
Volusion has not returned emails or phone calls from this reporter, nor from security researchers from Check Point and Trend Micro. Cyber-security firm RiskIQ is also tracking the incident and confirmed the hack to ZDNet.
Compromised Google Cloud infrastructure
Classic Magecart supply-chain attack
The incident is what cyber-security experts call a Magecart attack or web card skimming, where crooks steal payment card details from online shops, rather than ATMs. These types of hacks have been happening for years, but they've intensified over the past two.
In a report published last