Hangzhou Xiongmai Technology is recalling earlier models of four kinds of cameras due to a security vulnerability

A camera product from Hangzhou Xiongmai Technology.

A Chinese electronics component maker is recalling 4.3 million internet-connected camera products from the U.S. market amid claims they may have played a role in Friday's massive internet disruption.

On Monday, Hangzhou Xiongmai Technology said it was recalling earlier models of four kinds of cameras due to a security vulnerability that can make them easy to hack.

"The main security problem is that users aren't changing the device's default passwords," Xiongmai said in a Chinese-language statement posted online.

According to security firm Flashpoint, malware known as Mirai has been exploiting the products from Xiongmai to launch massive distributed denial-of-service attacks, including Friday's, which slowed access to many popular sites, including Netflix, PayPal, and Twitter.

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