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Farsight Security

Farsight Security®, Inc. is the world's largest provider of historical and realtime DNS intelligence solutions. We enable security teams to qualify, enrich and correlate all sources of threat data and ultimately save time when it is most critical - during an attack or investigation. Our solutions provide enterprise, government and security industry personnel and platforms with unmatched global visibility, context and response. Farsight Security is headquartered in San Mateo, California, USA.

Learn more about how we can empower your threat platform and security team with Farsight Security passive DNS solutions at or follow us on Twitter: @FarsightSecInc

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Latest Content From Farsight Security

Infographic: The Anatomy of a Phishing Attack

by Farsight SecurityJul 14, 2020

93% of confirmed data breaches involve phishing by luring users with malicious attachments or email links. See the full anatomy of a phishing attack, how it works, and how you can fight it.

Research Report: DNS Network Traffic Volumes During the 2020 Pandemic

by Farsight SecurityJul 14, 2020

The COVID-19 coronavirus pandemic of 2020 has changed how users interact with the world and particularly with the Internet. Employees may now be working from home (or may have been laid off as a result of government-mandated business closures). Colleges and universities have largely shuttered their campuses and gone online. Online shopping has supplanted visits to brick-and-mortar stores. Business and leisure travel has largely ceased. Binge-watching streaming television has replaced going out for dinner, drinks, and a traditional movie. The world we inhabit today is NOT the same world we inhabited at the end of 2019.

This timely study reviews Farsight Security's® observed traffic volumes for passive DNS cache miss traffic for 316 online sites selected from five broad categories:

  • News sites
  • Travel and transportation sites
  • Retail sites
  • Streaming video sites
  • Colleges and universities

  • Details
  • Research Report

E-Book: DNS Dictionary

by Farsight SecurityJul 14, 2020

This dictionary contains key terminology, abbreviations, and acronyms related to the Domain Name System and covers topics spanning security, infrastructure, malware, and essential organizations.

E-Book: Using Farsight Passive DNS for Incident Response

by Farsight SecurityJul 14, 2020

Phishing remains the number one cause of data breaches. Cybercriminals create domain names targeted for spam or phishing campaigns, use them for an attack, and then discard them within a period of a few minutes. In this eBook, explore how Farsight Security's real-time and historical passive DNS solutions effectively can be used throughout the four phases of the NIST incident response lifecycle.

Highlights of the eBook include:

  • According to the 2019 Verizon Data Breach Investigations Report (DBIR), phishing is the number one cause of data breaches. With a single click on a spoofed domain name, an unsuspecting user can provide attackers entry into a commercial or government network.
  • Examples of how passive DNS can be used in incident response lifecycle.
    • Conducting risk assessments.
    • Detecting and analyzing phishing and other cyberattacks.
    • Containment, eradication and recovery.
    • Post-incident activities like ongoing risk assessment.