ThreatsDay Bulletin: Defender 0-Day, SonicWall Brute-Force, 17-Year-Old Excel RCE and 15 More Stories

You know that feeling when you open your feed on a Thursday morning and it’s just… a lot? Yeah. This week delivered. We’ve got hackers getting creative in… Read MoreThe Hacker News

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[Webinar] Find and Eliminate Orphaned Non-Human Identities in Your Environment

In 2024, compromised service accounts and forgotten API keys were behind 68% of cloud breaches. Not phishing. Not weak passwords. Unmanaged non-human identities that nobody was watching. For… Read MoreThe Hacker News

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Cisco Patches Four Critical Identity Services, Webex Flaws Enabling Code Execution

Cisco has announced patches to address four critical security flaws impacting Identity Services and Webex Services that could result in arbitrary code execution and allow… Read MoreThe Hacker News

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Hidden Passenger? How Taboola Routes Logged-In Banking Sessions to Temu

A bank approved a Taboola pixel. That pixel quietly redirected logged-in users to a Temu tracking endpoint. This occurred without the bank’s knowledge, without user consent, and without… Read MoreThe Hacker News

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Obsidian Plugin Abuse Delivers PHANTOMPULSE RAT in Targeted Finance, Crypto Attacks

A “novel” social engineering campaign has been observed abusing Obsidian, a cross-platform note-taking application, as an initial access vector to distribute a previously undocumented Windows… Read MoreThe Hacker News

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Actively Exploited nginx-ui Flaw (CVE-2026-33032) Enables Full Nginx Server Takeover

A recently disclosed critical security flaw impacting nginx-ui, an open-source, web-based Nginx management tool, has come under active exploitation in the wild. The vulnerability in question… Read MoreThe Hacker News

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April Patch Tuesday Fixes Critical Flaws Across SAP, Adobe, Microsoft, Fortinet, and More

A number of critical vulnerabilities impacting products from Adobe, Fortinet, Microsoft, and SAP have taken center stage in April’s Patch Tuesday releases. Topping the list is an… Read MoreThe Hacker News

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Deterministic + Agentic AI: The Architecture Exposure Validation Requires

Few technologies have moved from experimentation to boardroom mandate as quickly as AI. Across industries, leadership teams have embraced its broader potential, and boards, investors, and… Read MoreThe Hacker News

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Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities

Microsoft on Tuesday released updates to address a record 169 security flaws across its product portfolio, including one vulnerability that has been actively exploited in the wild. Of these 169… Read MoreThe Hacker News

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OpenAI Launches GPT-5.4-Cyber with Expanded Access for Security Teams

OpenAI on Tuesday unveiled GPT-5.4-Cyber, a variant of its latest flagship model, GPT‑5.4, that’s specifically optimized for defensive cybersecurity use cases, days after rival Anthropic unveiled its… Read MoreThe Hacker News

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