Posts related to information security, including news, tutorials, malware analysis, and threat intelligence.
DNS describes the structure of resources on the internet. It can provide lots of valuable information about (attacker or target)…
The Domain Name System (DNS) is best known as the way domain names are converted into IP addresses that clients…
Recently I analyzed a credential harvesting page with some interesting characteristics that made a great teaching moment. In this post,…
The Parler data dumps you've heard were obtained legally. Here's how they did it.
If you receive a fraudulent email, can be very useful to send a full forensic copy to an organization that…
Email headers contain very useful information for tracing a message's origin and troubleshooting its delivery. Email headers are written with…
I have written extensively about the DMARC email security standard, including publishing a comprehensive guide on how to implement it,…
Emotet is a Trojan designed to steal banking information. It is frequently spread by sending phishing emails to governments, banks,…
If you ever need to inspect the certificate of a remote SMTP server, you can use the openssl CLI tool.…
DMARC can stop spoofed spam and phishing from reaching you and your customers, protecting your information security and your brand.…