Latest Cybersecurity News and Articles

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OAuth Client ID Spoofing Lets Attackers Validate Stolen Microsoft Entra Credentials

At least two distinct threat actors are weaponizing a novel evasion technique called OAuth client ID spoofing in cloud campaigns, while slipping past telemetry. The activity allows users to enumerate user accounts and validate stolen credentials in Microsoft Entra ID environments, without ever generating a successful sign-in event that would otherwise alert defenders. And bad actors have begun

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SAP Patches Critical Vulnerabilities in NetWeaver, Approuter, Commerce Cloud

The flaws could allow attackers to access and modify data, and cause system unavailability and request-response desynchronization. The post SAP Patches Critical Vulnerabilities in NetWeaver, Approuter, Commerce Cloud appeared first on SecurityWeek.

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US, Allies Warn of Russian Cyberattacks Targeting Critical Infrastructure Routers

Multiple state-sponsored APTs are compromising poorly secured devices across critical infrastructure sector networks. The post US, Allies Warn of Russian Cyberattacks Targeting Critical Infrastructure Routers appeared first on SecurityWeek.

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Valarian Raises $50 Million for Sovereign Infrastructure Control Layer

UK-based cybersecurity firm Valarian has raised a total of $70 million for its ACRA technology. The post Valarian Raises $50 Million for Sovereign Infrastructure Control Layer appeared first on SecurityWeek.

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Multiple Jscrambler Packages Impacted by Supply Chain Attack

A threat actor poisoned several Jscrambler NPM package versions to drop a cross-platform credential stealer. The post Multiple Jscrambler Packages Impacted by Supply Chain Attack appeared first on SecurityWeek.

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Grok Build Uploads Entire Git Repositories to xAI Storage, Not Just Files It Reads

xAI's Grok Build coding CLI was uploading entire Git repositories, full commit history and all, to a Google Cloud Storage bucket run by xAI, not just the files a coding task needed. A researcher publishing as cereblab, testing version 0.2.93, captured one of those uploads, cloned the git bundle out of the intercepted request, and pulled back a file the agent had been told in plain terms not

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U.S. Sanctions First VPN Service and Malware Cryptor Seller Over Ransomware Support

The U.S. Treasury Department's Office of Foreign Assets Control (OFAC) has designated two individuals and a VPN service provider for enabling ransomware actors' and other cybercriminals' malicious activities, including ransomware attacks against Americans. The VPN, named First VPN Service (1VPNS), has been accused of offering its tools to ransomware groups, along with its 45-year-old Ukrainian

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148 npm Packages Disguised as Student Proxies Turned Browsers Into a DDoS Botnet

A campaign of 148 npm packages disguised as student web proxies turned visitors' browsers into a distributed denial-of-service botnet for roughly two weeks in May, according to new research from JFrog. The packages did not go after the developers who might install them. The operators used the registry as free hosting for a booby-trapped proxy site and let the students who came to dodge

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Pentagon Suspends CMMC Phase 2 as It Rethinks Contractor Cybersecurity Rules

A new CMMC review and reform task force will conduct a comprehensive review of the program. The post Pentagon Suspends CMMC Phase 2 as It Rethinks Contractor Cybersecurity Rules appeared first on SecurityWeek.

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Microsoft Maps Year-Long ShinyHunters-Linked Salesforce Data Theft Across Three Paths

Attackers whose methods line up with the data-extortion group ShinyHunters have spent the past year walking into corporate Salesforce environments without exploiting a single flaw in the platform. The way in has been the trust the organization had already extended, usually through the OAuth connections that tie Salesforce to the apps and third-party vendors around it. In 

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CrashStealer macOS Malware Uses Notarized Dropper to Pass Gatekeeper Checks

Cybersecurity researchers have flagged a new macOS information stealer called CrashStealer that's capable of harvesting sensitive data from compromised systems. Unlike other information stealers that are built on AppleScript droppers or Objective-C-based wrappers, CrashStealer is implemented in native C++, according to Jamf Threat Labs. "It validates the victim's login password locally before

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Google and Microsoft Pull ModHeader With 1.6 Million Installs After Dormant Collector Found

Google and Microsoft have pulled ModHeader, a popular header-editing extension with roughly 1.6 million installs across Chrome and Edge, after researchers found a hidden browsing-history collector built into its official store version. The collector was dormant. An empty allow-list kept it switched off, and no proof has emerged that it ever gathered or sent a single browsing domain. The

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⚡ Weekly Recap: ShareFile Threat, Citrix Bleed 2 Ransomware, AI Coding Attacks, and More

Somewhere right now, a security tool is quietly finding bugs faster than any human can fix them. That's supposed to be the good news. The catch is that the attackers have the same tools, pointed the other way, and they don't file tickets. That's the shape of this week. Trusted code turns on the people who installed it. Old bugs from last year are still landing because the fix sat in a queue too

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Lessons Learned from CISA’s Recent GitHub Leak

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a postmortem on a data leak in which a contractor published dozens of internal CISA credentials -- including AWS Govcloud keys -- in a public GitHub repository for almost six months before being notified by KrebsOnSecurity. Experts say the gaps identified in the agency's initial response provide important lessons that all security teams should absorb.

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Hacker Conversations: Jesse McGraw (GhostExodus), From Blackhat Hacker to Redemption

Once a notorious blackhat hacker, McGraw shares his journey from high school hacking and prison to redemption as a cybersecurity advocate. The post Hacker Conversations: Jesse McGraw (GhostExodus), From Blackhat Hacker to Redemption appeared first on SecurityWeek.

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New MemGhost Attack Plants Persistent False Memories in AI Agents Through One Email

Give an AI assistant a memory and access to your inbox, and you hand an attacker a way to rewrite what it thinks it knows about you. A single email can trick that agent into saving a false "fact" about the user, hide the change, and quietly steer its answers in later sessions. When it works, the person reads an ordinary-looking reply and never learns their assistant was tampered with. The

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Forg365 PhaaS Targets Microsoft 365 with Device Code and AitM Session Theft

A new phishing-as-a-service (PhaaS) operation called Forg365 is using a combination of device code phishing, adversary-in-the-middle (AitM) tactics, antibot evasion, artificial intelligence (AI)-assisted lure creation, and post-compromise mailbox operations targeting Microsoft 365 accounts. Distributed via Telegram and costing $400 a month (or $3,800 per year), attack chains leverage phishing

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Cybersecurity M&A Roundup: 37 Deals Announced in June 2026

Significant cybersecurity M&A deals announced by 1Password, Accenture, Cisco, F5, Rubrik, and SailPoint. The post Cybersecurity M&A Roundup: 37 Deals Announced in June 2026 appeared first on SecurityWeek.

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RabbitMQ Vulnerability Threatens Enterprise Systems

Unauthenticated attackers could obtain the broker's confidential OAuth client secret, allowing them to take control of the broker. The post RabbitMQ Vulnerability Threatens Enterprise Systems appeared first on SecurityWeek.

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UK and Allies urge critical sectors to improve defences against Russian intelligence targeting

New advisory highlights Russian state cyber actors’ global exploitation of poorly configured routers