Latest Cybersecurity News and Articles

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Microsoft Warns Poisoned MCP Tool Descriptions Can Make AI Agents Leak Data

New Microsoft research shows how attackers can hijack AI agents that act on a user's behalf, using nothing more than a poisoned tool description to make the agent quietly hand over company data to an outsider. The trick is that the agent never breaks a rule. Every step looks routine, so in a default setup no alarm may fire. The work comes from Microsoft Incident Response and its

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RustDuck Botnet Rebuilds in Rust to Hijack Routers and Servers for DDoS

A new two-stage malware family called RustDuck is hijacking home routers, IP cameras, Android boxes, and poorly secured servers, then stitching them into a network built to knock websites and online services offline. Researchers at QiAnXin's XLab have tracked it since February 2026, and say the real story is not how big it is today, but how fast it is changing. The end goal is a

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Langflow RCE Exploited to Deploy Monero Miner on Exposed AI App Endpoints

Threat actors are continuing to exploit a critical Langflow vulnerability as part of fresh attacks designed to deliver a Monero cryptocurrency miner. The activity has been found to weaponize CVE-2026-33017 (CVSS score: 9.3), an unauthenticated remote code execution (RCE) vulnerability in Langflow, indicating threat actors are scanning and targeting exposed artificial intelligence (AI)

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Silent Swap Crypto Clipper Uses Fake Google Notes Extension to Replace Wallet Addresses

Cybersecurity researchers have flagged an active browser extension campaign that is designed to steal cryptocurrency by stealthily replacing wallet addresses when unsuspecting users initiate a transaction. The cryptocurrency clipper activity has been codenamed Silent Swap by McAfee Labs. "The campaign is delivered through unsigned installers – observed in both .NET and Golang variants – that

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GuardFall Exposes Open-Source AI Coding Agents to Decades-Old Shell Injection Risks

The safety check that is supposed to stop an AI coding agent from running a dangerous command can be walked straight past using a shell trick that has been public for decades. New research from Adversa AI, which is named the bypass GuardFall, found it works against ten of the eleven popular open-source coding and computer-use agents the firm tested. Only one, "Continue," was built to

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BlueHammer Vulnerability Exploited in Ransomware Attacks

The Microsoft Defender vulnerability CVE-2026-33825 was exploited in the wild as a zero-day before patches were released. The post BlueHammer Vulnerability Exploited in Ransomware Attacks appeared first on SecurityWeek.

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282 iOS AI Apps Leak API Keys and Open AI Proxy Access in Network Traffic Study

Researchers tested 444 AI chatbot apps for iPhone and found that 282 of them, nearly two-thirds, exposed paid AI access through their network traffic. In many cases, the path in was visible just by watching what the app sent: a plaintext API key, a reusable token, or a backend server that accepted requests with no key at all. Whoever grabs it can send model requests on the developer's account,

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Decades-Old Bash Tricks Expose AI Coding Agents to Supply Chain Attacks

Decades-old Bash shell tricks can bypass safeguards in most open source AI coding agents, potentially turning malicious repositories into supply chain attack vectors. The post Decades-Old Bash Tricks Expose AI Coding Agents to Supply Chain Attacks appeared first on SecurityWeek.

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Aflac Japan Data Breach Impacts 4.38 Million

Hackers accessed the insurance giant’s policyholder portal multiple times between June 15 and June 25. The post Aflac Japan Data Breach Impacts 4.38 Million appeared first on SecurityWeek.

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Hacker Conversations: Chris Thompson, Former Head of IBM X-Force Red, Co-Founder of RemoteThreat

Chris Thompson's journey took him from hacking game controls as a teenager to founding IBM’s X-Force Red team. The post Hacker Conversations: Chris Thompson, Former Head of IBM X-Force Red, Co-Founder of RemoteThreat appeared first on SecurityWeek.

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Supreme Court Rules Constitutional Privacy Protections Apply to Cellphone Users’ Location History

The ruling was made in the case of a bank robber whose identity was discovered through a geofence warrant. The post Supreme Court Rules Constitutional Privacy Protections Apply to Cellphone Users’ Location History appeared first on SecurityWeek.

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What the Numbers Say About FIFA 2026 Cyber Risk

The FIFA World Cup 2026 opened on June 11. By that date, according to Check Point Research, the fraud infrastructure targeting it had already been built, staged, and partially deployed. Threat actor activity was pre-planned, months out, across three sectors and at least ten languages. Check Point Exposure Management published the FIFA World Cup 2026 Cyber Threat Report this month, covering

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Exploitation of Recent Oracle E-Business Suite Vulnerability Begins

The critical-severity defect allows unauthenticated attackers to take over the E-Business Suite’s Payments product. The post Exploitation of Recent Oracle E-Business Suite Vulnerability Begins appeared first on SecurityWeek.

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Attackers Exploit SimpleHelp CVE-2026-48558 to Deploy TaskWeaver and Djinn Stealer

An unknown threat actor has been observed exploiting a recently disclosed maximum-severity security flaw in SimpleHelp to deliver two previously unreported malware families, TaskWeaver and Djinn Stealer. The intrusion involves the exploitation of CVE-2026-48558 (CVSS score: 10.0), a critical authentication bypass vulnerability impacting the OpenID Connect (OIDC) flow that an unauthenticated

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The AI Token Costs That Can Break Cybersecurity

As cybersecurity platforms embrace agentic AI, organizations must balance detection performance against the escalating costs of token consumption, deployment architecture, and AI credits. The post The AI Token Costs That Can Break Cybersecurity appeared first on SecurityWeek.

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AirDrop and Quick Share Flaws Let Nearby Attackers Trigger Crashes and Bypass Checks

Two researchers have found six security flaws in AirDrop and Quick Share, the wireless features that beam files between nearby devices with no cables or shared network. An attacker within wireless range, with just a laptop and no prior connection, can crash the sharing service on a Mac or iPhone set to receive from anyone, with no tap or prompt. The same research found Quick Share flaws that

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Nissan Employee Data Breached in Oracle PeopleSoft Hack

Only a handful of the 100 organizations targeted in the PeopleSoft campaign have been confirmed. The post Nissan Employee Data Breached in Oracle PeopleSoft Hack appeared first on SecurityWeek.

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Critical SimpleHelp Vulnerability Exploited for Malware Delivery

The threat actor is focused on collecting credentials, SSH keys, cryptocurrency wallets, and development tooling. The post Critical SimpleHelp Vulnerability Exploited for Malware Delivery appeared first on SecurityWeek.

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New BioShocking Attack Tricks AI Browsers Into Leaking User Credentials

Convince an AI browser that it is playing a game, and it can hand over your login details. That is the finding behind BioShocking, a technique from security firm LayerX that tricked six AI browsers and assistants into copying a user's credentials and sending them to an attacker. The targets included OpenAI's ChatGPT Atlas, Perplexity's Comet, and Anthropic's Claude browser extension. An

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Progress Kemp LoadMaster Flaw Could Let Attackers Run Root Commands Pre-Auth

A critical vulnerability in Progress Kemp LoadMaster can let an unauthenticated attacker execute arbitrary commands as root on the appliance by sending a crafted request to its API. The flaw, tracked as CVE-2026-8037, carries a CVSS score of 9.8 according to ZDI. A patch is available. If you run LoadMaster with the API enabled, update now. Progress published its advisory on June