What is the Role and Relevance of PTR DNS Resource Records?

What is the Role and Relevance of PTR DNS Resource Records?

You might be familiar with DNS records that map domain names to IP addresses. But have you ever come across the term “PTR (Pointer) records” or perhaps “reverse DNS records?” PTR records, or reverse records, as the name suggests, are the exact opposite of “a” DNS records. So, instead of translating domain names to IP…

Understanding Kimsuky’s Latest Phishing Tactics: Exploiting DMARC “None” Policies

Understanding Kimsuky’s Latest Phishing Tactics: Exploiting DMARC “None” Policies

News Flash: The infamous North Korean group of hackers — Kimsuky strikes back! Kimsuky is not a new name in the cybersecurity circle, as it is well known for pulling off sophisticated email-based attacks and leveraging social engineering tactics. But this time, they have changed their approach and shifted their focus towards organizations that have DMARC…

Decoding PCI DSS v4.0 and Enhancing Security with DMARC: A Guide

Decoding PCI DSS v4.0 and Enhancing Security with DMARC: A Guide

Does your business involve your customers making card payments? If yes, this one is for you! Now that digital payments have become the backbone of most businesses, you cannot afford to let any unauthorized entity snoop in on your transactions or your customers’ card details. They could use this information to unleash havoc on your…

Fixing Google Calendar Invites That Fail DMARC Checks

Fixing Google Calendar Invites That Fail DMARC Checks

Google Calendar invites fail DMARC checks when the recipient replies to them, and the response goes back to Google’s servers instead of the sender’s domain. This happens because the ‘From’ address and the originating server don’t match.  This failure also occurs due to the fact that Google uses shared IP addresses to send Google Calendar…