The Chinese government has issued a warning to websites selling virtual private networks.
The Cyberspace Administration of China on Thursday demanded that five websites remove vendors that sell VPNs, which the country outlawed in July. Officials in China aim to stop people from using VPNs to get around its internet filter dubbed the Great Firewall, which blocks access to websites like Twitter and Facebook.
VPNs also help people keep their internet traffic private from the government or anybody who is trying to spy on them.
One of the websites warned was Alibaba's Taobao, China's largest online retailer, according to Reuters.
The government issued an order to "immediately carry out a comprehensive clean-up of harmful information, close corresponding illegal accounts" and "submit a rectification report," Reuters reported.
The country has been cracking down on VPNs, including social media sites like WeChat and Weibo. China passed a law that will require tech companies to remove VPNs by early 2018.and investigating
Alibaba didn't respond to requests for comment. It's unclear when Alibaba will have to remove the VPN vendors.