What are sandbox environments for email?
Sandboxes are isolated environments where suspicious files execute safely. Email security systems detonate attachments in sandboxes, observing behavior for malware indicators without risking production systems.
Sandbox analysis reveals: what processes spawn, what network connections occur, what files are created or modified, and what registry changes happen. Malicious behavior visible in sandbox triggers blocking.
Limitations: sophisticated malware detects sandboxes and behaves normally until on real systems, analysis takes time potentially delaying email delivery, and not all malicious behaviors manifest in time-limited sandbox runs.
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