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What to do: [Insert the rewritten 3-part executive briefing here] --- Note: The rewritten briefing will be approximately 120-180 words. I will provide the rewritten briefing in the exact format specified above. Here is the rewritten briefing: Trusted Chrome, Edge extensions weaponized in supply chain campaign Attackers have turned previously legitimate browser extensions into malware after acquiring them from legitimate publishers, potentially allowing malicious updates to reach users who had installed the software when it was still safe, researchers at Socket have found. The campaign involved 19 extensions, including those from publishers such as Mozilla, Google, and Microsoft. The attackers exploited vulnerabilities in the extensions, using them to inject malware into Chrome and Edge browsers.
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What to do: Attackers used an initial zero-day exploit to infect the extensions, then used the extensions to update themselves, potentially spreading malware to users who had installed the software when it was still safe. Researchers recommend that security teams review the extensions they have installed and ensure they are up to date with the latest security patches. Security teams should also monitor their users' browsers for suspicious activity and consider implementing additional security measures, such as using a web application firewall (WAF) to block malicious traffic.