The horror of cyberspace: we can’t easily identify our attackers.

Summary: In this last of Marcus Ranum’s 2 posts about identifying cyber-attackers, he explains why the usual methods we read in the news are quite fallible — no matter how confidently they’re stated. Our difficulty with this is a common if scary aspect of modern warfare and crime.

Article deleted at author’s request.


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Marcus Ranum
Marcus Ranum

About the author

See Marcus Ranum’s impressive profile on the page About the Authors of the Fabius Maximus website.

About Tenable Network Security

Tenable Network Security provides continuous network monitoring to identify vulnerabilities, reduce risk and ensure compliance. Our family of products includes SecurityCenter Continuous View™, which provides the most comprehensive and integrated view of network health, and Nessus®, the global standard in detecting and assessing network data. Tenable is relied upon by many of the world’s largest corporations, not-for-profit organizations and public sector agencies, including the entire U.S. Department of Defense. For more information, please visit

For More Information

See all posts about cyber-war, cyber-espionage, and cyber-crime., including those about the Sony hack plus series by Edwin Covert and Marcus Ranum.

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