Rahul Powar investigates in the latest IT Security Guru article some of the common pitfalls seen in email security, explaining how deploying DMARC can protect domains against impersonation by scammers and improve email deliverability.
Rahul Powar investigates in the latest IT Security Guru article some of the common pitfalls seen in email security, explaining how deploying DMARC can protect domains against impersonation by scammers and improve email deliverability.
Executive summary: TLS certificates are about to get significantly shorter-lived. Starting 15 March 2026, newly issued public-trust certificates will max out at 200 days—and just three years later, that lifespan drops to 47 days. Backed by Google, Apple, and Mozilla, this shift aims to make the web safer through fresher data, faster failover, and…
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Email authentication isn’t just an IT concern. It protects your brand and customers. A single misstep can let attackers spoof your domain, send phishing emails, and destroy customer trust. One of the most dangerous methods? The DKIM replay attack. In this post, we’ll break down how undersigned DKIM keys and related misconfigurations open your…
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Email threats aren’t slowing down, and neither should your authentication strategy. In our recent joint webinar with Marigold, “From DMARC to BIMI: Navigating the New Email Authorization Landscape,” we broke down what today’s evolving standards mean for both security and marketing teams—and how to take action now with our free Red Sift Investigate tool.…
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On April 16, 2025, Zoom experienced a significant global outage that disrupted video conferencing services and access to its website for thousands of users, as well as their corporate email for all their employees. It was quickly identified as a domain name registration status problem. Despite being a critical name for Zoom, somehow, the…
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