Why are sources an important aspect of ensuring email security with DMARC?
by DuoCircle
By now, you might have heard a lot about how DMARC reports are crucial for your organization to gain insights into your email traffic and learn how your authentication protocols are waging against phishing and spoofing attempts. They reveal the harsh truth, that is, not all emails claiming to be from your domain are legitimate. While you’re decoding DMARC reports, have you ever looked into the sources of these emails?
Email authentication isn’t simply about verifying senders; it’s about protecting your organization from phishing, spoofing, and other email-based attacks and, most importantly, ensuring that your email campaigns reach their intended recipients. An email authentication protocol that ticks all of these boxes is DMARC, or Domain-based Message Authentication, Reporting, and Conformance.
This week’s cybersecurity updates include the latest Google Chrome malicious file alerts, the story of KnowBe4 hiring a North Korean Hacker, the 400 cyberattacks on the Greece Land Registry, US Sanctions on Russian Hackers targeting critical infrastructure, and threat actors taking advantage of fake CrowdStrike updates. Stay tuned!
Learning to perform SPF delegation for enhanced email delivery
by DuoCircle
The SPF delegation method is for domain owners who authorize an external email server to send emails on their behalf without having them fail the email authentication checks. This requires you to make some alterations to the existing SPF record.
The risk of cybercriminals intercepting your emails and tampering with them is perpetual. But there’s a way to mitigate this risk and make sure that your emails are delivered unaltered without any malicious interference. Implementing DKIM or DomainKeys Identified Mail is your masterstroke against email tampering and spoofing. It relies on cryptographic techniques to sign your emails, allowing recipients to verify that they truly originate from your domain and have not been messed with.
Here’s an inside look at the latest cybersecurity news covering the 15 million emails stolen from Trello, Kaspersky’s exit from the U.S., what Revolver Rabbit is doing with 500,000 domains, the AT&T Data Breach, and info-stealer malware being distributed via Facebook ad campaigns. Let’s take a look!
Threat actors bypass DKIM authentication checks with the DKIM replay attack technique. This allows them to attain a copy of a valid email and replay it with additional or replaced From, To, or Subject headers. As the original DKIM signature is valid, the replayed version also passes the DKIM authentication checks. This way, even phishing and spoofing emails land in the recipients’ inboxes instead of spam folders.
Email authentication has become a non-negotiable standard for companies and governments, as it prevents phishing, spoofing, ransomware, and other email-based cyberattacks. Email authentication protocols also raise alerts for modified email contents as these changes indicate tampering done by threat actors.
![Chrome Warns Users, KnowBe4 Hires Hacker, Greece’s Registry Attacked – Cybersecurity News [July 22, 2024]](https://www.duocircle.com/wp-content/uploads/2024/07/email-migration-service.jpg)
![Trello Emails Leaked, Malware Domains Registered, Kaspersky Exits USA – Cybersecurity News [July 15, 2024]](https://www.duocircle.com/wp-content/uploads/2024/07/spf-permerror.jpg)
