Polyfill.io owner punches back at 'malicious defamation' amid domain shutdown
ID: dd06572e-1aa3-5801-9207-06d384e928e3
STIX ID: report--dd06572e-1aa3-5801-9207-06d384e928e3
Feed Name: The Register (Security)
Threat Score
After the polyfill.io domain changed hands, security researchers and Cloudflare reported the CDN was used to inject malicious JavaScript into sites that loaded its scripts—potentially redirecting users; Sansec noted over 100,000 affected sites. Domain registrar Namecheap suspended polyfill.io, Cloudflare offered automatic URL rewriting to its mirror to mitigate the supply-chain risk, and the service later relaunched as polyfill.com which subsequently stopped resolving.
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