Cybersecurity Research

Ransomware and the "Dark Web"

Security Research Team
Updated — October 15, 2020 • 3 minute read
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Cisco Security Report: Majority of Orgs Do Not Monitor DNS

Owen Lystrup
Updated — August 10, 2020 • 2 minute read
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C is for Python

Chip McSweeney
Updated — March 18, 2020 • 10 minute read
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Python is great, in that we can write programs to test hypothesis and everyone can still read the program. The problem however, is speed.

The Avalanche Project: When High Frequency Trading Meets Traffic Classification

Thibault Reuille
Updated — April 15, 2020 • 7 minute read
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Log Analysis with OpenDNS

Josh Pyorre
Updated — March 5, 2020 • 5 minute read
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Eyeballing log files line by line isn't going to get us anything more than a headache. It's much smarter to tackle the problem programmatically.

Phishing, Spiking, and Bad Hosting

Dhia Mahjoub
Updated — June 8, 2023 • 6 minute read
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OpenDNS Senior Security Researcher Dhia Mahjoub discusses how the team integrates phishing detection models to improve identification of current threats.

How Hacking Team Helped Italian Special Operations Group with BGP Routing Hijack

Andree Toonk
Updated — March 5, 2020 • 4 minute read
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Which providers have the most phishing content?

Josh Pyorre
Updated — March 5, 2020 • 5 minute read
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Using just a small sample of reported phishing content, we can capture a good picture of which hosting providers may be more vulnerable to compromise.

Spikes and Query Patterns

Thomas Mathew
Updated — August 3, 2020 • 3 minute read
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In this post, Thomas Mathew of OpenDNS Security Labs examines the different types of spikes and query patterns we see across OpenDNS's worldwide resolvers.

Elasticsearch: You Know, For Logs [Part 4]

UmbrellaEngineering
Updated — October 15, 2020 • 6 minute read
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The fourth and final installment of Harlin Brandvold's in-depth Elasticsearch explainer.