For companies that do need Java support on the Web, defending against zero-day exploits can be a bit more complicated. However, there are options to significantly reduce the likelihood of attacks.
Internet Explorer has a feature that administrators can use to restrict which websites are allowed to load Java content, like only those hosting relevant business applications. And browsers like Mozilla Firefox and Google Chrome have a click-to-play option that can be used to prevent the automatic execution of Web-based Java content.
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