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An update from DigiCert for VMC and CMC customers
DigiCert has shared details of an incident affecting one of its internal systems. Your VMC and CMC certificates remain valid and trusted, and no action is needed.
Read moreProduct UpdatesRed Sift's Quarterly Product Release: Fall 2026
Smarter AI-powered classification in OnDMARC, a new reporting API, Certbot Integration in beta, and three ways Brand Trust catches impersonation faster. See what shipped this fall.
Read morePerformance of post-quantum cryptography
ML-KEM and ML-DSA are fast on the CPU, but their larger keys and signatures cause fragmentation and extra round trips. Here's what Google, Cloudflare and academic research show.
Read moreBeyond Awareness: Why Digital Trust Starts With Authentication
AI is making impersonation faster and more convincing. Here's why email authentication, BIMI, and DMARC data in the SOC now sit at the center of digital trust this Cybersecurity Awareness Month.
Read moreCertificatesEight eMudhra CA keys were compromised. Here is what it means for you
Eight eMudhra intermediate CA keys could be recovered from their public certificates. Here's who is affected, what we found, and what to do now.
Read moreCritical PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619: what you need to know
Two PHP vulnerabilities with CVSS scores of 9.2 can allow unauthenticated remote code execution on web servers. Here's how they work, who's exposed, what to patch, and what we've already done for Red Sift Hardenize customers.
Read moreBIMIWebinar recap: Building up to BIMI with Mailgun and Red Sift
Missed our BIMI webinar with Mailgun? Here's how SPF, DKIM, and DMARC enforcement lead to BIMI, what certificates cost, and how BIMI Maker helps.
Read moreCertificatesCloudflare certificate authority: what it means for you
Cloudflare is applying to become a certificate authority, with post-quantum certificates due in 2027. Here's what it means for teams managing TLS certificates.
Read moreIntroducing Red Sift BIMI Maker, a first-of-its-kind mark certificate tool
Red Sift BIMI Maker takes your logo from an image file to a filed BIMI certificate application, streamlined through either a Verified Mark Certificate (VMC) or Common Mark Certificate (CMC).
Read morepost-quantumA closer look at the performance of ML-KEM
ML-KEM barely moves the CPU needle, but it adds real bytes to every TLS handshake. Here's what changes when hybrid key establishment goes live.
Read moreCompany NewsRed Sift now integrates email authentication data into Microsoft Sentinel
Red Sift OnDMARC now streams forensic data and audit logs into Microsoft Sentinel, so security teams can investigate email authentication inside their SIEM.
Read moreEmail SecurityUS DMARC adoption: 5,000 domains ranked by state
Red Sift analyzed DMARC adoption across 5,000 US domains in 49 states and D.C. Only 38.4% block spoofed email. See the full state ranking and sector data.
Read morepost-quantumEffect of post-quantum algorithms on networking performance
ML-KEM and ML-DSA don't cost much extra CPU, but they add real round trips. Here's how post-quantum handshakes change TLS latency, congestion windows, and middlebox behavior.
Read morepost-quantumPost-quantum key establishment, ten years later
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.
Read moreDNSHow open zone transfers expose your internal network
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.
Read morepost-quantumWhy post-quantum signatures are breaking TLS handshake limits
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.
Read moreCertificatesLet's Encrypt webinar recap: Adapting to shorter certificate lifecycles and PKI changes
Certificate lifetimes are dropping to 47 days by March 2029. Get the scoop from leading certificate authority, Let's Encrypt, on what shorter TLS certificate lifespans mean for automation, inventory, plus, how Red Sift Certificates can help.
Read moreAI & SecurityIntroducing Radar Lite's new Claude and ChatGPT integrations
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.
Read moreDMARCDMARC in Ireland: where the biggest companies stand
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.
Read moreProduct UpdatesRed Sift's Quarterly Product Release: Summer 2026
Summer's here, and so is a batch of updates from our product and engineering teams.
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