Domain Tools

DomainTools provides businesses and security professionals with the tools they need to track and analyze criminal behavior online. This platform enables users to evaluate potential threats and take proactive steps to safeguard against future attacks.

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What’s RDAP and Whereis Whois?

2 months ago | domaintools.com | Kali Fencl |Grant Cole

Domain registration data has been a long-standing asset for threat intelligence; correlating registration data across domains can uncover additional identifiers related to threat actors targeting companies, their employees, and their customers. Even with privacy redactions, registration data continues to be a critical source of information for threat analysts. Whois has been the protocol to communicate domain registration for over 40 years.
Tanya Janca on Secure Coding, AppSec, and Breaking Barriers in Cybersecurity

Jan 15, 2025 | domaintools.com | Kali Fencl

In this episode of Breaking Badness, we sit down with Tanya Janca, aka SheHacksPurple, a cybersecurity educator, and author of the best-selling book Alice and Bob Learn Application Security. Tanya shares her journey from software developer to AppSec expert, dives into the unique challenges of teaching secure coding, and discusses the impact of cybersecurity breaches on industries and individuals.
How Domain Intelligence and Passive DNS Create A Fuller Domain Profile

Dec 10, 2024 | domaintools.com | Kali Fencl

We often hear of folks using our tools that they may have a preference for one over another. I think that’s just human nature – we tend to stick with what we know because it’s been working for us – if it ain’t broke why fix it? While it may be true that your queries are working, are they working as hard as they could be? Could they be even more impactful?
IPv6 Deployment on the Internet

Nov 4, 2024 | domaintools.com | Kali Fencl

We’ve previously reported on the Internet’s use of IPv4 address spaceas seen in count data from Farsight DNSDB. As part of that work, we mapped the Internet’s IPv4 address space for a 90 day period, visualizing that data using space filling Hilbert Curve “heatmaps” plus a series of violin plots. This is the IPv6 “companion volume” to that IPv4 report, delivering similar insights for IPv6 counts and unique RRsets over a 90 day period.
Inside the Mind of ‘The Gibson’: Ethics, Activism, and the Evolution of Hacking

Oct 30, 2024 | domaintools.com | Kali Fencl

Breaking Badness Join Kali Fencl as she dives deep into a conversation with cybersecurity veteran The Gibson. With 25+ years in InfoSec, The Gibson shares his journey from coding as a child to shaping threat intelligence and privacy-first technology today.
Phishmas Comes Early: New Developments in USPS Smishing Attacks

Oct 29, 2024 | domaintools.com | Kali Fencl |Steve Behm

Phishing attacks to gather personal information attributed to the threat actor Chenlun/Sinkinto01 have continued after our original investigation in December of 2023. After analyzing related domains, I’ve noticed interesting evolutions in their tactics, techniques, and procedures. Chenlun has expanded to use Amazon lures in addition to the previously identified United States Postal Office (USPS) lures.
Rogue Hackers and the Internet Archive Breach: 31 Million Accounts Exposed!

Oct 23, 2024 | domaintools.com | Eliza Kingsley |Tim Helming

Breaking Badness In this episode of Breaking Badness, Kali, Tim, and Taylor discuss two major stories shaking up the cybersecurity world. First, a researcher has discovered how attackers are exploiting Whois data to grant themselves unprecedented superpowers in the digital space.
Post Quantum Cryptography (PQC): You May Already Be Using It!

Oct 17, 2024 | domaintools.com | Eliza Kingsley |Joe St Sauver

While DNS makes the Internet approachable and usable for people, cryptography makes it secure. Without trustworthy encryption, logging on to remote computers, engaging in online banking and shopping, and exchanging confidential personal communications would be difficult, to say nothing of implications for national security-related systems. In this blog, we are going to stray from our DNS roots to talk about important changes happening in cryptography.
API Security, Mobile Myths, and Real-World Threats

Oct 16, 2024 | domaintools.com | Eliza Kingsley

Breaking Badness In this episode of Breaking Badness, we dive deep into the evolving world of Endpoint Detection and Response (EDR) and its critical role in modern cybersecurity. With threats advancing and the sheer volume of endpoint data skyrocketing, AI and deep learning are becoming game changers in threat detection and prevention.
A Website Attacked - DomainTools | Start Here. Know Now.

Oct 14, 2024 | domaintools.com | Kali Fencl

The following is a non-exhaustive investigation into a so-called “watering hole attack” on a U.S.-based apartment’s public facing website to deliver malware by spoofing a fake browser update. The investigation led to the identification of dozens of other compromised websites from health care providers, retail, hobbyist and other consumer websites. Compromised websites were modified to load malicious scripts from external domains.