Digital Security Measures

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Digital Security Measures

• Mail Frontier Update
• Tracy S. Holt
• April 24, 2006

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Mail Frontier Update

• What is Mail Frontier?
• Performance stats
• Reporting 'missed' spam
• Current spam techniques

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Mail Frontier

• Comprehensive AV/AS/AF Solution
• Implemented September 2004
• Since implementation
• 275.5 million messages processed
• 201.6 million messages quarantined
• 73
• Averaged 66 in September 2004
• As high as 82 during parts of Feb/Mar 2006
• Average 72 in 2006

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Missed Spam

• Slight variations in spam score
• New Techniques
• User Settings
• Aggressiveness versus False Positives
• Send copies to missed-spam_at_gmu.edu
• Messages reviewed by vendor
• New signatures/fingerprints issued daily

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New Spam/Phishing Techniques

• Use embedded images
• Not just for pretty backgrounds anymore
• 'Good' words
• Mail Frontier adding OCR to software
• Visual Tricks
• Misspellings
• Hidden characters

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Questions?