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post-quantum

Post-quantum key establishment, ten years later

Aug 17, 20267 min read

Post-quantum key establishment is now standard in TLS 1.3, but only 11% of origin servers are protected. Here's where hybrid ML-KEM adoption really stands.

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DNS

How open zone transfers expose your internal network

Aug 7, 20266 min read

An open DNS zone transfer hands attackers a map of your network in one query. Here's what it reveals, and how Red Sift ASM keeps your organization safe.

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post-quantum

Why post-quantum signatures are breaking TLS handshake limits

Aug 3, 20268 min read

Post-quantum signature sizes are up to 34x larger than ECDSA. Here's why ML-DSA certificate chains blow past the 14.5 KB TCP congestion window.

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Certificates

How to adapt to shorter certificate lifecycles and PKI changes

Jul 31, 20268 min read

Certificate lifetimes are dropping to 47 days by March, 2029. See what shorter TLS certificate lifespans mean for automation, inventory, and Red Sift Certificates.

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AI & Security

Introducing Radar Lite's new Claude and ChatGPT integrations

Jul 29, 20264 min readNatalie Hays

Red Sift Radar Lite now integrates natively with Claude and ChatGPT, so your team can run email, DNS, and web security checks inside the tools it already uses.

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DMARC

DMARC in Ireland: where the biggest companies stand

Jul 22, 20267 min readJack Lilley

Red Sift checked DMARC across 200 of Ireland's biggest companies. Multinationals sit at 63% enforcement and Irish-founded firms at 39.6%. See the full data.

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Product Updates

Red Sift's Quarterly Product Release: Summer 2026

Jul 21, 20265 min read

Summer's here, and so is a batch of updates from our product and engineering teams.

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Email Security

Dangling DNS: how to find and fix it before takeover

Jul 20, 20267 min readBilly McDiarmid

Dangling DNS is easy to create and hard to spot. OWASP and AWS both flag it. Here's the risk, what each says, and how to find and fix it across your estate.

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DMARC

DMARC in Germany: where the top 250 companies stand

Jun 24, 20267 min readJack Lilley

Only 44.8% of Germany's top 250 companies enforce DMARC at p=reject, and 32% have no real email protection. See the gaps, the NIS2 angle, and the fixes.

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Certificates

Post-quantum cryptography starts with your PKI estate

Jun 23, 20264 min readBilly McDiarmid

Post-quantum cryptography migration faces a 2031 federal deadline and Google's own 2029 target. Here's why mapping your PKI estate has to start now.

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Certificates

The Certificate Transparency Visibility Gap

Jun 18, 20266 min readIvan Ristic

Certificate Transparency has a visibility gap most organizations miss. Learn how CAA and CT monitoring can close it before a bad actor does.

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Red Sift and GlobalSign Announce 2026 BIMI Partnership

Jun 15, 20263 min read

Red Sift OnDMARC is now available through GMO GlobalSign, giving customers a single path from DMARC enforcement to BIMI and a Verified Mark Certificate (VMC).

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Company News

Red Sift featured in History of Parliament centenary book launch at Westminster Abbey

Jun 10, 20263 min readJack Lilley

Red Sift joins “Monarchy and Democracy: A History of Leadership,” an official History of Parliament book launching at Westminster Abbey 9 June 2026.

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DMARC

61% of Southeast U.S. organizations are unprotected against phishing attacks

Jun 9, 202613 min readJack Lilley

Red Sift analyzed 600 Southeast US domains and found only 39% have full DMARC enforcement. See the state-by-state breakdown and how to close the gap.

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DMARC

69% of Northwest U.S. businesses vulnerable to email phishing

Jun 5, 202612 min readJack Lilley

Red Sift analyzed 600 Northwest domains and found only 31% have full DMARC enforcement, the lowest of any U.S. region. See the breakdown and how to fix it.

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Company News

OnDMARC climbs to #1 in the Mid-Market Grid in G2's Summer 2026 Report

May 29, 20262 min read

Red Sift OnDMARC ranked #1 in three Mid-Market indexes and earned 10 badges in G2's Summer 2026 Report.

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Certificates

DKIM and Post-Quantum Cryptography: Keep Calm and Fix the Basics

May 26, 20264 min read

Post-quantum cryptography is a real issue, but not every part of the email security stack is exposed in the same way. A lot of commentary collapses the whole topic into “store now, decrypt later”: ...

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DMARC

DMARCbis is now an IETF Proposed Standard: What that means today

May 21, 20265 min read

Going forward, DMARCbis is the new DMARC with added clarity.

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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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