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  • June 20, 2026

    SVG Phishing Files Are Now the Third Most Common Malicious Email Attachment -- and DMARC Cannot Filter Them

    On June 2, 2026, SANS Internet Storm Center handler Xavier Mertens published an analysis of a phishing wave that had been landing in his inbox for several consecutive days. The attachment on each message was an SVG file …

  • June 19, 2026

    Google Postmaster Tools v2 Added a Deliverability Analysis Checklist -- And the 0.3% Spam Rate Is Now a Kill Switch

    For years, Google Postmaster Tools gave senders a reputation label – High, Medium, Low, or Bad – and left them to figure out what was causing the problem. The labels were opaque by design. You could watch …

  • June 18, 2026

    Ghost-Sender: Why DMARC Cannot Stop Spoofing When Exchange Online Is Misconfigured

    In early June 2026, Swiss cybersecurity firm InfoGuard Labs disclosed a vulnerability they named Ghost-Sender: a misconfiguration in Microsoft Exchange Online that allows an attacker to deliver email impersonating any …

  • June 17, 2026

    Telecom Is Now the Number One Phishing Target. Here Is Why That Makes Email Authentication More Critical Than Ever.

    The Anti-Phishing Working Group published its Q1 2026 Phishing Activity Trends Report in May 2026. The headline number is significant: 971,181 unique phishing attacks in the first three months of the year, up 13.8 …

  • June 16, 2026

    Google Filed a Lawsuit Over AI-Generated Phishing at Industrial Scale. Here Is What Every Domain Owner Should Do Now.

    On June 12, 2026, Google filed a civil lawsuit against a China-based cybercrime network known as Outsider Enterprise. The complaint alleges that the group used Google’s own Gemini AI to generate phishing landing …

  • June 15, 2026

    Vendor Email Compromise Now Makes Up 61% of Business Email Fraud. DMARC Alone Won't Stop It.

    Abnormal AI’s 2026 Attack Landscape Report, published in April, analyzed nearly 800,000 email attacks across more than 4,600 organizations during the second half of 2025. One finding in particular is worth pausing …

  • June 13, 2026

    Your Email Passed DMARC, SPF, and DKIM. The Phishing Link Inside Did Too.

    A message arrives. The sender domain looks legitimate. The receiving mail server checks SPF: pass. It verifies the DKIM signature: pass. It evaluates the DMARC record against both results: pass. Every authentication gate …

  • June 9, 2026

    Inside the Direct Send Exploit: Attackers Are Using Microsoft 365 to Impersonate Your Own Employees

    A phishing campaign uncovered by Varonis Threat Labs targeted more than 70 organizations – predominantly in the United States – by exploiting a legitimate Microsoft 365 feature in a way most security teams …

  • May 30, 2026

    The SPF Time Bomb in Your SaaS Stack: How the 10-Lookup Limit Silently Kills Email Deliverability

    Every organization that has grown its software stack over the past few years carries a potential deliverability fault line inside a DNS record most people never look at. The SPF record, a short TXT entry that authorizes …

  • May 28, 2026

    Phishing-as-a-Service Is Industrializing Email Attacks: Barracuda's 2026 Report and What DMARC Must Do Next

    A single-month scan of 3.1 billion emails. One in three messages flagged as malicious or unwanted spam. Nearly half of all malicious activity originating from phishing. These are the headline numbers from …

  • May 27, 2026

    SMB1001:2026 Makes DMARC Enforcement Mandatory for Small Businesses — Here Is What That Means

    For years, DMARC enforcement felt like an enterprise problem. Large organizations had the IT staff to navigate DNS configuration, aggregate reporting, and the careful source-discovery work required to move from p=none to …

  • May 26, 2026

    The 45-Point Inbox Gap: Why DMARC Is Now the Most Important Lever in Email Marketing

    Email marketing returns between $36 and $42 for every dollar spent in 2026. No other marketing channel comes close: paid search returns roughly $2, social advertising $2.80, display ads $1.35. The gap is so large that it …

  • May 25, 2026

    Cloudflare Analyzed 450 Million Emails: 46% Failed DMARC — and That Is Not Even the Biggest Problem

    Cloudflare published its 2026 Threat Intelligence Report in March, and the email security chapter deserves more attention than it received in the broader coverage of the report. The headline finding that nation-state …

  • May 24, 2026

    QR Code Phishing Surged 146% in Q1 2026: What DMARC Can and Cannot Stop

    Microsoft Threat Intelligence published its Q1 2026 email threat landscape report on April 30. The headline figure was 8.3 billion email-based phishing threats detected in the first three months of the year. Monthly …

  • May 23, 2026

    BEC Stole $2.77 Billion Last Year. DMARC Enforcement Would Have Closed the Door.

    The FBI’s Internet Crime Complaint Center received 21,442 Business Email Compromise reports in 2024. The total losses across those incidents came to $2.77 billion. That works out to an average loss of approximately …

  • May 22, 2026

    Gmail Is Now Two Filters: Why DMARC Gets You In and Gemini Decides If You're Seen

    On January 8, 2026, Google announced that Gmail was entering the Gemini era. The announcement marked something more consequential than a feature release: it formalized the existence of a second filter in Gmail’s …

  • May 21, 2026

    35,000 Users in 48 Hours: How AiTM Phishing Exploits Email Routing Gaps That DMARC Can Close

    On April 14, 2026, a phishing campaign began reaching inboxes at healthcare systems, banks, law firms, and technology companies across 26 countries. By April 16, it was over. In those 48 hours, Microsoft’s threat …

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