Spring cleaning your browser
The article outlines four common browser attack surfaces that accumulate through normal use: overprivileged extensions, long-lived sessions and stored credentials, phishing links, and drive-by download/malvertising chains. It highlights that browser extensions often retain broad permissions to read page content and browser activity, creating risk if an extension is abandoned, compromised in a supply-chain attack, or abused for man-in-the-browser activity. It also notes that cached cookies, autofill data, and active SaaS sessions can give infostealers and adversary-in-the-middle operations a shortcut to authenticated access, enabling token theft and session hijacking without re-entering credentials. On the endpoint side, the piece ties outdated browsers and plugins to fake-update and compromised-site delivery chains such as SocGholish, GootLoader, and ClickFix-style campaigns, and recommends enterprise browser controls like policy-based extension restrictions, update enforcement, and credential storage governance.