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Certificates

CA/Browser Forum: ACME CAA Extensions (RFC 8657) To Become Mandatory

May 14, 20265 min read

The CA/Browser Forum has spoken: ACME CAA extensions will be mandatory from March 2027 onward.

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Email Authentication

Building an email and brand defense that works: Webinar recap

May 13, 20265 min read

DMARC is a good start, but it’s not the finish line. Learn more about the multifaceted nature of cyber attacks and what you can do to protect your brand in this webinar recap.

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FTSE 250 DMARC report: 39% of the UK's top companies still don't block spoofed email

May 12, 20268 min readJack Lilley

Red Sift analysed DMARC records for the FTSE 250. 60.8% have reached enforcement, but 98 of the UK's largest mid-cap companies still leave email exposed.

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DMARC

59% of North Central U.S. organizations exposed to email spoofing

May 8, 202613 min readJack Lilley

Red Sift analyzed 1,000 North Central domains and found only 41% have full DMARC enforcement. See the state-by-state breakdown and how to close the gap.

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AI & Security

Beyond the leaderboard: Benchmarking LLMs on a real security task

May 6, 202610 min read

We benchmarked 12 LLM configurations on Radar Lite's security summarization task. Frontier models led, but mid-tier options came surprisingly close at a fraction of the cost.

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Certificates

High-Assurance Certificate Transparency Monitoring with Red Sift Certificates

May 1, 20266 min read

Learn how to detect unauthorized certificate issuances with Certificate Transparency monitoring. Set up CAA policies, CT monitoring rules, and high-assurance escalation in Red Sift Certificates.

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Certificates

Should you use public PKIs for your private infrastructure?

Apr 30, 20265 min read

Public PKIs are cost-effective for internal use, but come with trade-offs like certificate transparency, rate limits, and shrinking lifetimes. Here's how to decide between public and private PKI.

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Certificates

How many public PKIs are there?

Apr 30, 20265 min read

Public Key Infrastructures go far beyond Web PKI. Explore the full landscape of public PKIs — from code signing and S/MIME to BIMI and Matter — and learn which one fits your needs.

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DMARC

64% of U.S. Heartland organizations exposed to email spoofing

Apr 28, 202611 min read

Red Sift analyzed 900 Heartland domains and found only 36% have full DMARC enforcement. See the state-by-state breakdown and how to close the gap.

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DMARC

Most businesses still can't answer one simple question about their email

Apr 23, 20267 min read

Just 2.5% of domains enforce DMARC at p=reject. Red Sift and Bespin Labs (Patronum) break down why email authentication stalls, and how to fix it before regulators and attackers force the issue.

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Email Security

FBI IC3 2025 report: Email fraud is now a $4 billion problem

Apr 21, 20264 min read

The FBI IC3 2025 report shows BEC, phishing, and impersonation fraud hit $4B+ in losses. Here’s what the data means for email authentication.

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AI & Security

Security in the age of AI: Mythos and going back to basics

Apr 20, 20265 min read

AI models like Anthropic's Mythos are finding and exploiting vulnerabilities faster than humans can keep up. Learn why the answer to AI-driven cyber threats starts with getting the basics right.

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DMARC

Only 40% of the Southwest's top organizations block spoofed email

Apr 17, 20269 min read

Red Sift analyzed 500 Southwest domains and found only 40% have full DMARC enforcement. See the state-by-state breakdown and how to close the gap.

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Email Security

How widely supported are Ed25519 DKIM keys and how many providers still accept weak keys?

Apr 16, 20267 min readFaisal Misle

Red Sift tested 19 mailbox providers for Ed25519 DKIM support and weak key acceptance. Only 47% validate Ed25519, and 6 still accept broken 512-bit RSA keys.

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DMARC

How to secure your brand with DMARC against email threats: Webinar recap

Apr 15, 20268 min read

AI-powered phishing attacks have surged. Learn how DMARC enforcement protects your brand from exact domain spoofing in this webinar recap.

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Product Updates

Red Sift’s Quarterly Product Release: Spring 2026

Apr 9, 20265 min read

Red Sift's Spring 2026 product release covers updates across Brand Trust, OnDMARC, and Certificates. New this quarter: the Brand Trust AI Agent, Dangling MX detection in DNS Guardian, TLS endpoint details, and a PQC readiness dashboard for Enterprise customers.

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DMARC

Only 44% of the Mid-Atlantic's top organizations block spoofed email

Apr 7, 20269 min read

Red Sift analyzed 700 Mid-Atlantic domains and found only 44% have full DMARC enforcement. See the state-by-state breakdown and how to close the gap.

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DNS

NIST DNS update: What this means for your organization

Mar 25, 20265 min read

NIST SP 800-81 Revision 3 reframes DNS as an active security layer for the first time since 2013. Here's what changed and why it matters for DMARC, SPF, and DKIM.

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Company News

OnDMARC dominates Mid-Market and holds strong globally in G2's Spring 2026 Report

Mar 23, 20263 min read

OnDMARC ranked #1 in three Mid-Market indexes and earned 10 badges in G2's Spring 2026 Report, with customers rating it 4.8/5 for DMARC management.

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Certificates

PKI ecosystem changes in 2026: what your team needs to know

Mar 19, 20267 min read

2026 brings shorter certificate lifetimes, unmanaged private PKI, and looming post-quantum migration. A concise guide to the changes security teams need to plan for.

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