Category Archives: Bleeping Computer

Polyfill.io, BootCDN, Bootcss, Staticfile attack traced to 1 operator

The recent large scale supply chain attack conducted via multiple CDNs, namely Polyfill.io, BootCDN, Bootcss, and Staticfile that affected up to tens of millions of websites has been traced to a common operator. Researchers discovered a public GitHub repository with leaked API keys helping them draw a conclusion. […]

Polyfill claims it has been ‘defamed’, returns after domain shut down

The owners of Polyfill.io have relaunched the JavaScript CDN service on a new domain after polyfill.io was shut down as researchers exposed it was delivering malicious code on upwards of 100,000 websites.. The Polyfill service claims that it has been “maliciously defamed” and been subject to “media messages slandering Polyfill.” […]

Cloudflare: We never authorized polyfill.io to use our name

Cloudflare, a lead provider of content delivery network (CDN) services, cloud security, and DDoS protection has warned that it has not authorized the use of its name or logo on the Polyfill.io website, which has recently been caught injecting malware on more than 100,000 websites in a significant supply chain attack. […]