enterprise security | Breaking Cybersecurity News | The Hacker News

Cybersecurity researchers have uncovered a new account takeover (ATO) campaign that leverages an open-source penetration testing framework called TeamFiltration to breach Microsoft Entra ID (formerly Azure Active Directory) user accounts. The activity, codenamed UNK_SneakyStrike by Proofpoint, has targeted over 80,000 user accounts across hundreds of organizations' cloud tenants since a surge in login attempts was observed in December 2024, leading to successful account takeovers. "Attackers leverage Microsoft Teams API and Amazon Web Services (AWS) servers located in various geographical regions to launch user-enumeration and password-spraying attempts," the enterprise security company said . "Attackers exploited access to specific resources and native applications, such as Microsoft Teams, OneDrive, Outlook, and others." TeamFiltration, publicly released by researcher Melvin "Flangvik" Langvik in August 2022 at the DEF CON security conference...

Modern enterprise networks are highly complex environments that rely on hundreds of apps and infrastructure services. These systems need to interact securely and efficiently without constant human oversight, which is where non-human identities (NHIs) come in. NHIs — including application secrets, API keys, service accounts, and OAuth tokens — have exploded in recent years, thanks to an ever-expanding array of apps and services that must work together and identify one another on the fly. In some enterprises, NHIs now outnumber human identities by as much as 50-to-1 .  However, NHIs introduce unique risks and management challenges that have security leaders on high alert. Forty-six percent of organizations have experienced compromises of NHI accounts or credentials over the past year, and another 26% suspect they have, according to a recent report from Enterprise Strategy Group .  It's no wonder NHIs — and the difficulties they present with oversight, risk reduction, and gove...

When generative AI tools became widely available in late 2022, it wasn't just technologists who paid attention. Employees across all industries immediately recognized the potential of generative AI to boost productivity, streamline communication and accelerate work. Like so many waves of consumer-first IT innovation before it—file sharing, cloud storage and collaboration platforms—AI landed in the enterprise not through official channels, but through the hands of employees eager to work smarter. Faced with the risk of sensitive data being fed into public AI interfaces, many organizations responded with urgency and force: They blocked access. While understandable as an initial defensive measure, blocking public AI apps is not a long-term strategy—it's a stopgap. And in most cases, it's not even effective. Shadow AI: The Unseen Risk The Zscaler ThreatLabz team has been tracking AI and machine learning (ML) traffic across enterprises, and the numbers tell a compelling story. In 2024 ...

Traditional data leakage prevention (DLP) tools aren't keeping pace with the realities of how modern businesses use SaaS applications. Companies today rely heavily on SaaS platforms like Google Workspace, Salesforce, Slack, and generative AI tools, significantly altering the way sensitive information is handled. In these environments, data rarely appears as traditional files or crosses networks in ways endpoint or network-based DLP tools can monitor. Yet, most companies continue using legacy DLP systems, leaving critical security gaps. A new white paper, Rethinking DLP For The SaaS Era: Why Browser-Centric DLP is the New Mandate , identifies precisely why current DLP methods struggle to secure modern SaaS-driven workflows. It also explores how browser-native security addresses these gaps by focusing security efforts exactly where user interactions occur, in the browser. Why Traditional DLP Tools Fall Short Traditional DLP solutions were built for a simpler time when sensitive...

Stealer malware no longer just steals passwords. In 2025, it steals live sessions—and attackers are moving faster and more efficiently than ever. While many associate account takeovers with personal services, the real threat is unfolding in the enterprise. Flare's latest research, The Account and Session Takeover Economy , analyzed over 20 million stealer logs and tracked attacker activity across Telegram channels and dark web marketplaces. The findings expose how cybercriminals weaponize infected employee endpoints to hijack enterprise sessions—often in less than 24 hours. Here's the real timeline of a modern session hijacking attack. Infection and Data Theft in Under an Hour Once a victim runs a malicious payload—typically disguised as cracked software, fake updates, or phishing attachments—commodity stealers like Redline (44% of logs), Raccoon (25%), and LummaC2 (18%) take over. These malware kits: Extract browser cookies, saved credentials, session tokens, and crypto walle...

A privilege escalation flaw has been demonstrated in Windows Server 2025 that makes it possible for attackers to compromise any user in Active Directory (AD). "The attack exploits the delegated Managed Service Account (dMSA) feature that was introduced in Windows Server 2025, works with the default configuration, and is trivial to implement," Akamai security researcher Yuval Gordon said in a report shared with The Hacker News. "This issue likely affects most organizations that rely on AD. In 91% of the environments we examined, we found users outside the domain admins group that had the required permissions to perform this attack." What makes the attack pathway notable is that it leverages a new feature called Delegated Managed Service Accounts ( dMSA ) that allows migration from an existing legacy service account. It was introduced in Windows Server 2025 as a mitigation to Kerberoasting attacks. The attack technique has been codenamed BadSuccessor by the w...

A recently patched pair of security flaws affecting Ivanti Endpoint Manager Mobile (EPMM) software has been exploited by a China-nexus threat actor to target a wide range of sectors across Europe, North America, and the Asia-Pacific region. The vulnerabilities, tracked as CVE-2025-4427 (CVSS score: 5.3) and CVE-2025-4428 (CVSS score: 7.2), could be chained to execute arbitrary code on a vulnerable device without requiring any authentication. They were addressed by Ivanti last week. Now, according to a report from EclecticIQ, the vulnerability chain has been abused by UNC5221 , a Chinese cyber espionage group known for its targeting of edge network appliances since at least 2023. Most recently, the hacking crew was also attributed to exploitation efforts targeting SAP NetWeaver instances susceptible to CVE-2025-31324. The Dutch cybersecurity company said the earliest exploitation activity dates back to May 15, 2025, with the attacks targeting healthcare, telecommunications, avia...

For many organizations, identity security appears to be under control. On paper, everything checks out. But new research from Cerby, based on insights from over 500 IT and security leaders, reveals a different reality: too much still depends on people—not systems—to function. In fact, fewer than 4% of security teams have fully automated their core identity workflows . Core workflows, like enrolling in Multi Factor Authentication (MFA), keeping credentials secure and up to date, and revoking access the moment someone leaves—are often manual, inconsistent, and vulnerable to error. And when security execution relies on memory or follow-up, gaps appear fast. Human error remains one of the biggest threats to enterprise security. Verizon's 2025 Data Breach report found that the human element was involved in 60% of breaches. The same manual missteps that led to breaches a decade ago still expose identity systems today. Cerby's 2025 Identity Automation Gap research report shows just how wi...

Security Service Edge (SSE) platforms have become the go-to architecture for securing hybrid work and SaaS access. They promise centralized enforcement, simplified connectivity, and consistent policy control across users and devices. But there's a problem: they stop short of where the most sensitive user activity actually happens—the browser. This isn't a small omission. It's a structural limitation. And it's leaving organizations exposed in the one place they can't afford to be: the last mile of user interaction. A new report Reevaluating SSEs: A Technical Gap Analysis of Last-Mile Protection analyzing gaps in SSE implementations reveals where current architectures fall short—and why many organizations are reevaluating how they protect user interactions inside the browser. The findings point to a fundamental visibility challenge at the point of user action. SSEs deliver value for what they're designed to do—enforce network-level policies and route traffic securely between en...

Google has revealed that it observed 75 zero-day vulnerabilities exploited in the wild in 2024, down from 98 in 2023 but an increase from 63 the year before. Of the 75 zero-days, 44% of them targeted enterprise products. As many as 20 flaws were identified in security software and appliances. "Zero-day exploitation of browsers and mobile devices fell drastically, decreasing by about a third for browsers and by about half for mobile devices compared to what we observed last year," the Google Threat Intelligence Group (GTIG) said in a report shared with The Hacker news. "Exploit chains made up of multiple zero-day vulnerabilities continue to be almost exclusively (~90%) used to target mobile devices." While Microsoft Windows accounted for 22 of the zero-day flaws exploited in 2024, Apple's Safari had three, iOS had two, Android had seven, Chrome had seven, and Mozilla Firefox had one flaw that were abused during the same period. Three of the seven zero-days ...

Threat actors are likely exploiting a new vulnerability in SAP NetWeaver to upload JSP web shells with the goal of facilitating unauthorized file uploads and code execution.  "The exploitation is likely tied to either a previously disclosed vulnerability like CVE-2017-9844 or an unreported remote file inclusion (RFI) issue," ReliaQuest said in a report published this week. The cybersecurity company said the possibility of a zero-day stems from the fact that several of the impacted systems were already running the latest patches. The flaw is assessed to be rooted in the "/developmentserver/metadatauploader" endpoint in the NetWeaver environment, enabling unknown threat actors to upload malicious JSP-based web shells in the "servlet_jsp/irj/root/" path for persistent remote access and deliver additional payloads. Put differently, the lightweight JSP web shell is configured to upload unauthorized files, enable entrenched control over the infected host...

Your employees didn't mean to expose sensitive data. They just wanted to move faster. So they used ChatGPT to summarize a deal. Uploaded a spreadsheet to an AI-enhanced tool. Integrated a chatbot into Salesforce. No big deal—until it is. If this sounds familiar, you're not alone. Most security teams are already behind in detecting how AI tools are quietly reshaping their SaaS environments. And by the time an alert is triggered—if it even exists—damage may already be done. This Isn't a Hypothetical Problem. It's Happening Now. AI adoption inside organizations is no longer strategic. It's spontaneous. Employees are experimenting, connecting, automating—and bypassing security while doing it. AI systems are becoming embedded in your SaaS stack without visibility or oversight. And it's creating a new class of shadow integrations—ones that don't show up in traditional threat models. If your current defenses rely on manual tracking, policy enforcement, or user education alone, you'r...

Everybody knows browser extensions are embedded into nearly every user's daily workflow, from spell checkers to GenAI tools. What most IT and security people don't know is that browser extensions' excessive permissions are a growing risk to organizations. LayerX today announced the release of the Enterprise Browser Extension Security Report 2025 , This report is the first and only report to merge public extension marketplace statistics with real-world enterprise usage telemetry. By doing so, it sheds light on one of the most underestimated threat surfaces in modern cybersecurity: browser extensions. The report reveals several findings that IT and security leaders will find interesting, as they build their plans for H2 2025. This includes information and analysis on how many extensions have risky permissions, which kinds of permissions are given, if extension developers are to be trusted, and more. Below, we bring key statistics from the report. Highlights from the Enterprise Browse...

AI agents have rapidly evolved from experimental technology to essential business tools. The OWASP framework explicitly recognizes that Non-Human Identities play a key role in agentic AI security. Their analysis highlights how these autonomous software entities can make decisions, chain complex actions together, and operate continuously without human intervention. They're no longer just tools, but an integral and significant part of your organization's workforce. Consider this reality: Today's AI agents can analyze customer data, generate reports, manage system resources, and even deploy code, all without a human clicking a single button. This shift represents both tremendous opportunity and unprecedented risk. AI Agents are only as secure as their NHIs Here's what security leaders are not necessarily considering: AI agents don't operate in isolation . To function, they need access to data, systems, and resources. This highly privileged, often overlooked acces...