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directory harvest attack |
Also found in: Acronyms, Wikipedia | 0.04 sec. |
directory harvest attackA method spammers use to obtain valid e-mail addresses. Random names are generated and sent out to valid domains. If an undeliverable message does not return, the name is assumed to be genuine. Random names are easy to generate from any electronic phone book because many organizations standardize on conventions such as first name letter and last name or first name and last name letter; for example, John Doe could be jdoe@xyz.com or johnd@xyz.com. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In the era of distributed workforces, virtual teams, road warriors and corporate globalization, e-mail is the most indispensable enterprise application, yet it continues to be plagued not only by spam but also by phishing, denial of service attacks, directory harvest attacks, viruses, worms and other types of malicious code. The goal of a Directory Harvest Attack (DHA) is to identify valid email addresses within a given domain. Dark Traffic" currently represents as much as 80% of all inbound email traffic, and is made up of spam precursors like directory harvest attacks (DHA), email denial of service (DoS) attacks, malformed SMTP packets, messages to non-existent recipient addresses, and other invalid email messages. |
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