Category: Email

Email

“What’s Next for DMARC”: Red Sift & Inbox Monster Webinar Recap

Red Sift

The recent webinar hosted by Inbox Monster, “What’s Next for DMARC: Data & Predictions for a New Era in Email Authentication,” featured insights from Red Sift and examined the significant changes brought by Yahoo and Google’s bulk sender requirements earlier this year.  It also offered a forward-looking perspective on the future of email authentication.…

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Email

Decoding the tricks: An analysis of poisoned domains in the SubdoMailing Attack

Phong Nguyen

At Red Sift, we have been paying close attention to SubdoMailing – a domain takeover attack first discovered in February of 2024. Malicious actors exploited poorly maintained DNS records to send fraudulent emails impersonating legitimate brands.  We identified affected organizations in our customer base and resolved the issue for all impacted users within 72…

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Email

DNS is the foundation for DMARC: Understanding the overlap

Rebecca Warren

When the threat of SubdoMailing was newly discovered, we wrote a comprehensive guide and worked to get our impacted customers remediated within 72 hours of the discovery being published by Guardio Labs. We are proud of what we accomplished, but through the process, we also discovered that many people don’t fully understand the overlap…

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Email

The best tools to protect yourself from SubdoMailing

Francesca Rünger-Field

In late February 2024, ‘SubdoMailing’ became a trending search term overnight. Research by Guardio Labs uncovered a massive-scale phishing campaign that had been going on since at least 2022. At the time of reporting, the campaign had sent 5 million emails a day from more than 8,000 compromised domains and 13,000 subdomains with several…

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Email

Navigating the “SubdoMailing” attack: How Red Sift proactively identified and remediated a…

Rebecca Warren

In the world of cybersecurity, a new threat has emerged. Known as “SubdoMailing,” this new attack cunningly bypasses some of the safeguards that DMARC sets up to protect email integrity.  In this blog we will focus on how the strategic investments we have made at Red Sift allowed us to discover and protect against…

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Email

Where are we now? One month of Google and Yahoo’s new requirements…

Rebecca Warren

As of March 1, 2024, we are one month into Google and Yahoo’s new requirements for bulk senders. Before these requirements went live, we used Red Sift’s BIMI Radar to understand global readiness, and the picture wasn’t pretty.  At the end of January 2024, one-third of global enterprises were bound to fail the new…

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