Comcast Wi-Fi serving self-promotional ads via JavaScript injection

Comcast has begun serving Comcast ads to devices connected to one of its 3.5 million publicly accessible Wi-Fi hotspots across the US. Comcast’s decision to inject data into websites raises security concerns and arguably cuts to the core of the ongoing net neutrality debate. […] Even if Comcast doesn’t have any malicious intent, and even if hackers don’t access the JavaScript, the interaction of the JavaScript with websites could “create” security vulnerabilities in websites, [Seth Schoen,Electronic Frontier Foundation] said. “Their code, or the interaction of code with other things, could potentially create new security vulnerabilities in sites that didn’t have them,” – David Kravets,Ars Technica
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