Email is the primary way that malware infiltrates systems. By default, Windows allows dangerous file types like scripts to execute when double-clicked, enabling malware. However, several simple changes can significantly reduce this risk. First, block common file types from email attachments and change their associations to open in Notepad instead of executing. Second, enable macros blocking in Office and tweak registry settings. Third, monitor for encrypted emails and evaluate any attachments. Together these low-effort changes can prevent the majority of malware delivered by email.
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