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Abnormal Security

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Security & Deliverability

Weaponised Trust: How Zendesk’s Relay Spam is Poisoning Support Domains

TL;DR: The “Relay Spam” Crisis The Deep Dive As of January 23, 2026, a global email-abuse campaign is still leaning on a very ordinary failure mode: misconfigured Zendesk support desks. The result is that legitimate companies are, without meaning to, sending huge volumes of “ticket received” auto-replies to people who never contacted them. This is […]

Security & Deliverability

2025 Report Reveals Rising Risk of Misdirected Emails, Says Abnormal AI

Abnormal AI’s latest report titled 2025 State of Misdirected Email Prevention: Keeping Sensitive Data Out of the Wrong Inboxes, flips a familiar narrative: some of the biggest email‑security problems aren’t hackers at all, but employees who click the wrong name in an address field. The “2025 State of Misdirected Email Prevention” study surveyed just over […]

Products & Markets

Microsoft Defender for Office 365 Adds Default Email Bombing Protection

Microsoft has announced that all Defender for Office 365 customers will receive automatic protection against email bombing attacks by the end of July 2025. The new security feature will be enabled by default across all customer environments. Email bombing involves flooding target email addresses with thousands of messages, often used by attackers to overwhelm users […]

Products & Markets

Abnormal Security Rebrands to Abnormal AI

Abnormal Security has rebranded to Abnormal AI, returning to its original 2018 name. This change reflects its expansion beyond email security to a broader AI-native security platform protecting users across enterprise applications. The company, now legally Abnormal AI, Inc., has launched a new website at abnormal.ai, though existing customer interfaces remain unchanged for now. This […]

Security & Deliverability

2024 Email Threat Abnormal Security Report

Abnormal Security released its H2 2024 Email Threat Report, revealing the growing threat of file-sharing phishing attacks, whereby threat actors use popular file-hosting or e-signature solutions as a disguise to manipulate their targets into revealing private information or downloading malware. Examining data collected between June 2023 and June 2024, Abnormal saw file-sharing phishing volume more than […]

Security & Deliverability

Abnormal Security & Microsoft Team Up to Deliver AI-Driven Email Security

Abnormal Security announced a global strategic alliance with Microsoft to deliver comprehensive security solutions to enterprises. Starting today, customers can purchase Abnormal’s security offering directly from Microsoft’s Azure Marketplace. Until today, enterprises struggled with advanced cyberattacks that would bypass security gateways that disable native controls. Abnormal Security and Microsoft worked together to ensure that the Abnormal platform […]