Threat actors have exploited “obscure” bugs in WebKit and Chrome browsers to serve over 1 billion malicious ads in less than two months, a new research has found. The attackers targeted iOS and macOS users with zero-day vulnerabilities in Chrome and Safari browsers that bypassed built-in security protections to show potential victims intrusive pop-up ads, and redirect users to malicious sites. Cybersecurity firm Confiant has been extensively tracking the group — dubbed “eGobbler” — a name inspired by the Thanksgiving holiday, when researchers spotted their malvertising campaigns for the first time last year. It’s worth noting here that the open-source WebKit…

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