A Preview Pane Attack is a cybersecurity exploit that targets the preview feature in email clients or file managers. Attackers craft malicious emails or files that, when automatically rendered in a preview pane, execute harmful code without the user's direct interaction, such as opening an attachment or link. This can lead to malware installation, data theft, or unauthorized system access. Vulnerabilities in software handling previews are often exploited, making it crucial to keep applications updated and disable preview panes when possible. Awareness and security measures can help mitigate the risks associated with these stealthy attacks.