As of Monday, July 27, 2026, the AI cybersecurity threat landscape is showing elevated activity across 143 tracked stories. The dominant themes today are AI & LLM Threats (41 stories), Vulnerabilities & CVEs (37 stories), and Phishing (21 stories). AI and LLM-based threats are particularly active with 41 stories covering topics such as prompt injection, model exploitation, deepfake campaigns, and AI-assisted attack tooling. 9 CVEs are being tracked across today's stories, including CVE-2026-54121, CVE-2025-66376, CVE-2018-0171, CVE-2008-4128 and 5 more. Each CVE badge below links directly to the NVD advisory. ⚠️ 20 stories involve critical severity, active exploitation, or zero-day conditions. Security teams should prioritize review of flagged items and verify patch status immediately.
The Nvidia-led coalition aims to give defenders more open tools for testing, auditing and protecting AI models and agents. The post Nvidia and Tech Giants Launch AI Security Alliance appeared first on SecurityWeek .
Security researchers who discovered and reported CVE-2026-54121 (aka “Certighost”), a critical privilege elevation vulnerability in Active Directory Certificate Services (AD CS), have released a proof-of-concept (PoC) exploit for and technical details related…
Hackers used an autonomous artificial intelligence agent to carry out a cyber-espionage campaign against Thailand's Ministry of Finance, researchers discovered.
Impersonating well-known cryptocurrency and trading sites, SourTrade has developed a novel technique to drop infostealers to victims
The Anubis cybercrime group has taken credit for the attack and is threatening to leak data. The post Coca-Cola Confirms Data Breach After Fairlife Ransomware Attack appeared first on SecurityWeek .
Researchers chained two Oj parser bugs to achieve GitLab RCE via Jupyter notebook diffs, affecting authenticated users on unpatched versions. Depthfirst researchers published a working remote code execution exploit for GitLab on July 24, chaining two memory…
Microsoft continued to be the most impersonated brand in Q2 2026, accounting for 23% of all brand phishing attempts. LinkedIn, Google, Apple, and Amazon followed, with the five brands together making up more than half of all brand phishing attempts tracked…
The China-linked cybercrime group behind the use of income tax-related phishing lures targeting Indian taxpayers, tax professionals, and corporate finance teams has been observed using a sophisticated crypter service called Cruciferra. According to a new…
A threat actor has been using the compromised appliances to target the Microsoft 365 accounts of traveling corporate employees. The post Hacked Public Wi-Fi Gateways Used to Harvest Corporate Credentials appeared first on SecurityWeek .
Binary-based vulnerability scanning, penetration testing, and exploit generation are blocked in Opus 5. The post Anthropic’s Opus 5 Nears Mythos 5 on Finding Bugs, but Falls Short on Exploits appeared first on SecurityWeek .
Halcyon’s latest quarterly ransomware report showed that while ransomware attacks are declining, obfuscation techniques are getting harder to fight against
In May 2026, hackers stole personal and dental health information from DentaQuest’s computer network. The post DentaQuest Data Breach Potentially Impacts Over 23 Million People appeared first on SecurityWeek .
AWS DevOps Agent helps administrators inspect logs, review firewall rules and network paths, identify configuration changes that caused AWS Network Firewall to block traffic, and restore connectivity. The service is an AI-powered operations assistant for…
Cybersecurity researchers have flagged fresh malicious cyber activity by a threat actor with ties to East Asia targeting government entities in the Middle East. The intrusions have resulted in the deployment of previously unreported malware families dubbed…
In this interview with Help Net Security, Mary Rose Martinez, CISO at Marathon Petroleum, talks about what happens to security when automation reaches deep into refineries, pipelines, and terminals. She explains why the old idea of air-gapped operational…
A new report links 148 ransomware attacks to Italian organizations in H1 2026, with manufacturing the most targeted sector. Six months, 148 confirmed ransomware claims against Italian targets, and one sector taking the brunt of it. That’s the headline number…
An AI coding agent opens a terminal, reads a config file, and finds a live cloud key sitting in plaintext. It runs with the permissions of the person who launched it. Every file that person can read, the agent reads. Every credential in the environment, the…
In this Help Net Security video, Joel Moses, VP, Strategic Engineering at F5, explains how attackers use identity instead of breaking through it. He walks through MFA fatigue, session token theft, and consent given to malicious applications, using the 2022…
Claude Opus 5 went live on Amazon Bedrock and Claude Platform on AWS. Anthropic says the model improves on Claude Opus 4.8’s cyber capabilities, coding through cybersecurity. Anyone with an AWS account in a supported region can call it. On higher-risk…
ESAFENET&#;x26;#;39;s CDG showed up in our data before. The company focused on secure document management and data leakage prevention solutions. The "CDG" stands for "Content Data Guard", and the product appears to be mostly…
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter UAC-0145 Primary Compromise Vectors as of July 2026 SleeperGem: Compromised git_credential_manager,…
Hackers compromised hotel Wi-Fi gateways to redirect users to fake Microsoft 365 login pages and steal credentials. ReliaQuest’s threat research team just documented attackers compromising the Wi-Fi gateways at hotels and conference centers, then quietly…
Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: AI agents are still logging in as humans Most large companies run more than one AI platform at the same time. Developers pull up coding assistants, marketing…
A malvertising operation dubbed SourTrade is making victims' browsers build the final Windows executable themselves, using a legitimate Bun runtime as its base instead of serving one complete malicious file from a fixed URL. Confiant, which detailed the…
Plus: Russian hackers are trying to steal US nuclear scientists’ emails, the State Department bans known scammers from entering the United States, and more.
EU fined Google €890M under the DMA for favoring its own services and restricting Play Store competition, with AI search features also under scrutiny. The European Commission hit Google with two fines totalling €890 million on Thursday for violating the…
Noteworthy stories that might have slipped under the radar: Siemens ROX II industrial switch vulnerabilities, Russian Zimbra webmail espionage campaign, Stadler Rail ransomware extortion attempt. The post In Other News: Dolphin X AI-Powered Malware, Car…
Hunt.io uncovered a cyber-espionage attack on Thailand’s Finance Ministry using Hermes AI agent and Hades malware for reconnaissance and persistence. Researchers at Hunt.io have uncovered an intrusion targeting Thailand’s Ministry of Finance that offers a…
Researchers at ReliaQuest warned of widespread DNS poisoning attacks targeting the hospitality sector as part of a cyber espionage campaign
Cybersecurity researchers have disclosed a critical vulnerability in OpenAI's ChatGPT Workspace Agents that could have allowed a single phishing link to stealthily build, authorize, and deploy an autonomous artificial intelligence (AI) agent inside a victim's…
AI agent security is moving through a familiar maturity curve: adoption, then visibility, and finally, control. But what we've collectively discovered is that enforcing least privilege for AI agents is harder than we ever imagined. This is why there are so…
OpenAI’s chatbot tool ChatGPT ranked among the top 10 most impersonated brands in phishing attacks for the first time
Someone installed a popular AI assistant on a rented server, switched off the setting that makes it ask permission before running risky commands, and pointed it at Thailand's Ministry of Finance, which runs the country's treasury and tax collection. The agent…
Eight security flaws in NodeBB went public on Wednesday, along with the code to exploit them. Aikido Security rates all eight as high severity and says its AI pentest agents found them in a six-hour review of the forum software's source code. Every version…
A Kremlin-backed group known as Laundry Bear has been using a zero-click phishing technique to break into Zimbra webmail accounts worldwide, the U.S. and other nations said.
Most of this week's trouble came dressed as something useful. A package stole data. A fake extension opened remote access. A safety app became spyware. An image gave hidden orders to an AI agent. Other threats hid in open systems, weak code, and normal…
CoreView research finds that security leadership is concerned about AI Assistant exposing confidential data
Two disclosures, five days apart, described the same intrusion from opposite ends — 
 one from the victim, one from the party that turned out to be responsible — and 
 together they make one of the more instructive…
Cybersecurity researchers have uncovered a sandbox escape vulnerability in Anthropic's Claude Cowork that makes it possible to break out of the confines of a Linux virtual machine (VM) within which the agent runs to read or write files anywhere on the Mac.…
Sophos report warns that the rapid adoption of AI by businesses is leaving them vulnerable to a new source of cyber threats
Dolphin X is a new infostealer that uses AI to sort and rank victims, giving cybercriminals a faster way to identify lucrative targets
A new study of organizations which have fallen victim to ransomware suggests the rise of AI-tools being used by hackers is making life harder for defenders
Security leaders who build fast, visible paths to AI adoption are becoming the most valued partners in their organizations. AI governance done right gives security teams the visibility they need, employees the tools they want, and CISOs the strategic…
Hugging Face recently disclosed a security breach. OpenAI has now said that it was its AI models which broke containment and hacked Hugging Face themselves
OpenAI on Tuesday said a combination of its artificial intelligence (AI) models, including GPT-5.6 Sol and an "even more capable pre-release model," was behind the security incident that targeted Hugging Face's production infrastructure last week. The AI…
CodeMender actively builds and runs exploits in customer-managed sandboxes to verify if vulnerabilities are truly exploitable
A single invisible comment in an Azure DevOps pull request can turn a reviewer's own AI coding agent against them, driving it into projects the attacker has no rights to reach and quietly leaking what it finds. The flaw is in Microsoft's official Azure DevOps…
The home appliance giant LG Electronics USA said this week it plans to suspend any apps built for its smart TVs that turn one's television into an always-on residential proxy node. The move comes less than a month after researchers found that more than 42…
The cybersecurity-focused models, including GPT-5.6 Sol, broke out of a testing sandbox, exploited a zero-day, and gained access to the open internet to pull off the attack.
<div class="c-page-title__buttons"><a class="c-button" href="https://media.defense.gov/2026/Jul/22/2003965244/-1/-1/1/CSA_RUSSIA_PHISHING_TARGET_ZIMBRA.PDF">Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration…
A new type of malware can worm deep into AI coding systems to steal data and logins—and can flip a “death switch” to destroy files and keep out real users.
Hidden text on a web page was enough to make Kiro, AWS's agentic coding IDE, rewrite its own configuration file and run an attacker's code on a developer's machine, with no approval step able to stop it. Intezer, in research with Kodem Security, found that a…
Google's DeepMind on Tuesday announced the release of Gemini 3.5 Flash Cyber, a specialized artificial intelligence (AI) model built atop 3.5 Flash that's designed to discover, validate, and patch vulnerabilities quickly and efficiently. According to the tech…
Russian-speaking actor Trim built a commercial offensive AI pentest tool on jailbroken Claude models
FBI warned of deepfake videos of IC3 leadership directing users to spoofed complaint sites
An Android app that can draw over other windows and write to shared storage can slip instructions to the AI agent driving that phone, in text no human eye will ever see. Two more steps, and the same app is running commands on the PC driving the agent.…
Researchers at Sysdig have linked a second attack on the same Langflow server to JADEPUFFER, the AI-agent-driven operator it first documented earlier this month. The same operator has now been spotted deploying ENCFORGE, a new compiled Go ransomware designed…
JadePuffer follow-up campaign deployed ENCFORGE locker built to destroy AI model artifacts
A researcher who discovered a critical vulnerability in WordPress has used OpenAI’s latest model to develop an exploit chain
Plus: Russian cyberspies turn to infrastructure hacking, DHS repeatedly fails to realize it’d been hacked, a breach exposes an AI music generator’s scraping ways, and more.
“Context bombing” tricks malicious AI agents into shutting down before they can do harm.
The City Attorney’s Office sent the tech giants cease-and-desist letters this week telling them to stop profiting from 13 “face-swap” apps that are overwhelmingly used to target women and girls.
Cybersecurity researchers tested Open AI GPT 5.5’s offensive cyber capabilities – and the results showed how effective a frontier LLM can be for hackers
SANS Institute says governance programs are still nascent even as AI failures and threats grow
The White House announced Gold Eagle to help accelerate the discovery, prioritization and patching of flaws found by AI
Microsoft released fixes for a record 570 CVEs in its July Patch Tuesday update, as experts warn AI is dramatically accelerating vulnerability discovery and increasing patch volumes
Microsoft Corp. today released software updates to plug at least 570 security holes in its Windows operating systems and other software, almost triple the number of vulnerabilities the software giant fixed in its record-smashing Patch Tuesday release last…
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…
Plus: The Pentagon is training amateurs to become part of its hacker army, a Flock license plate reader error led to cops surrounding a car reviewer, and more.
Researchers at the AI Now Institute developed a proof-of-concept exploit showing common AI tools used for security could backfire
Microsoft has said the volume of Windows security updates is set to grow as it uses AI to find new bugs
Wiz discovered GhostApproval, a symlink flaw in six major AI coding assistants that bypasses approval
Over 70 cybersecurity organizations have signed the CREST AI Charter detailing responsible use of AI for security
Cybersecurity researchers at ESET identify big rise in suspicious and malicious toolsets which put users at risk from cyber-attacks
<p>Russian Government-Sponsored Activity Targets Poorly Configured and Vulnerable Devices Across Critical Sectors</p> <h2><strong>Executive summary</strong></h2> <p>Russian Federal Security Service (FSB) Center 16 cyber actors continue to exploit poorly…
A cybersecurity startup dangling millions of dollars to acquire zero-day security vulnerabilities in popular software is run by a pair of far-right conspiracy theorists and convicted felons whose most recent ventures included fake intelligence companies and a…
Sygnia report details how agentic AI accelerated weeks-long attack to just 72 hours
The National Cyber Security Centre wants to work with AI partners to build a new “Cyber Shield” to defend the UK
Zscaler found sites hiding prompt-injection text to manipulate AI agents into crypto payments
The Office of Professional Responsibility has opened more than 100 cases over what ICE officials call “incidents of doxing and threats” against ICE employees.
IWF and NCA warn that growing numbers of images and videos are being manipulated into sexual abuse material
Researchers have revealed JadePuffer, the first agentic AI-powered ransomware campaign, highlighting how autonomous agents can automate cyber-attacks
The new classifier in Fable 5 blocks the jailbreak technique that prompted the US export controls “in over 99% of cases”
OpenAI is previewing its GPT-5.6 Sol model to a vetted few at the US government's request
Experts warn the Jaguar Land Rover breach bears hallmarks of Kremlin-backed hackers, citing novel ransomware, strategic timing and efforts to obscure attribution
Cobalt study finds 20-percentage-point drop in number of organizations relying solely on AI automation for testing
LayerX tricked AI browsers including ChatGPT Atlas and Comet into bypassing their guardrails
SentinelLabs found a North Korea-linked macOS backdoor using prompt injection on AI triage tools
New ReliaQuest study reveals the six ways AI is practically being used in attacks today
OpenAI expanded Daybreak with a full GPT-5.5-Cyber release to help defenders patch software flaws
The Five Eyes Alliance has published a rare call to action for organizations facing AI threats
North Korean threat actor Sapphire Sleet has been linked to a supply chain attack targeting Mastra, according to Microsoft security researchers
Working with frontier AI models, this new platform aims to help discovering, prioritizing, validating and remediating code vulnerabilities
A Rust crypto clipper hides behind fake GitHub stars and AI-narrated YouTube videos
Analysis of chatter on underground forums by Sophos finds that hackers fear AI could take work away from them
Nisos infiltrated a North Korean IT-worker fraud cell running on AI interviews and a US laptop farm
The rise of AI-assistants and applications in the enterprise has seen a 93% increase in employees attempting to upload sensitive data, bringing security challenges
Filigran survey at Infosecurity Europe 2026 reveals AI-powered attacks as the top concern, with false positives, alert fatigue and manual processes draining security teams
SANS Institute study finds few SOCs have built AI into defined workflows, despite widespread adoption
Athena is a new an industry coalition to fix the vulnerabilities frontier AI models find before attackers can exploit them
Access to two Anthropic large language models, Mythos 5 and Fable 5, has effectively been banned to any non-US nationals by the Trump administration
Government departments find hundreds of vulnerabilities after testing frontier models
Fake AI guides hide a multi-stage chain that drops AsyncRAT, with signs of AI-assisted coding
Organizations are aware of the challenges that new technologies like AI bring: but cybersecurity staff struggle to make time for the required training during working hours
Tenet Security researchers reveal how new “agentjacking” attacks could trick coding agents into executing arbitrary code
Anthropic unveils Claude Mythos 5 and Fable 5, a restricted-access frontier AI model and guardrailed version for everyone to use
Most dev teams use AI coding assistants but only 30% have full governance in place
OpenAI brings Lockdown Mode and Active Sessions to ChatGPT to curb prompt injection data theft
At Infosecurity Europe 2026, OWASP’s Ariel Fogel warned that prompt injection remains an “unresolved problem” within generative AI architecture
Meta confirms an AI tool vulnerability led to unauthorized access to Instagram accounts after a failure in email verification during password reset
Lloyds Banking Group shared its approach for securing agentic AI workflows, with a mix of hands on experimentation and cross functional governance
The OWASP agentic AI security framework helps organizations assess governance maturity vs adoption and adjust governance as needed
Ox Security field CTO, Boaz Barzel, makes the case for vibe security to tackle AI agent coding risks
Microsoft Detection and Response Team (DART) details how it has uncovered malicious AI applications as cyber criminals manipulate organizations adopting AI tools
A Bugcrowd researcher has unveiled ExploitBench, an independent benchmark of AI models for vulnerability exploitation
Proton uses machine learning models to detect abuse of its services – especially email addresses used by cybercriminals
Inaugural Infosecurity Europe Cyber Startup Award Winner Impresses Panel with Ability Help Prioritize Vulnerabilities in AI era
Trump's executive order invites voluntary pre-release review of frontier AI models
Anthropic widens Project Glasswing access to 150 more firms as patching becomes the bottleneck
The emergence of AI models capable to autonomously find and fix vulnerabilities at scale is having a significant impact on patching management, experts say
Halcyon’s Cynthia Kaiser lifts the lid on the dark web market for AI cybercrime tools
Humans still need to be part of cyber defense, but refusing to deploy AI is no longer optional against AI-enhanced cyber threats, warns Dataminr’s Joe Slowik
Bayer’s security awareness training now focuses on psychological approaches rather than technical methods for detecting social engineering
A threat actor used AI coding tools to build and test EDR evasion malware, Sophos finds
UK organizations are prioritizing AI-driven cybersecurity as 43% cite AI-powered attacks as their top risk, prompting significant investment in advanced threat defense
The Instagram accounts for the Obama White House and the Chief Master Sergeant of the U.S. Space Force were briefly defaced with pro-Iranian images and messages over the weekend, after instructions began circulating on Telegram showing how to trick Meta's "AI…
Top cybersecurity vendors said AI won't replace entry-level – only routine ticket-taking and triage
Push Security says threat actors are delivering malware hosted on chatgpt.com/s/ domain
OWASP’s new Agentic Research Council will aim to connect academic work to operational realities on agentic AI security
Sloppy AI-generated npm infostealer leaked its own GitHub token, exposing the operator
GCHQ director urges urgent business cyber action as AI and quantum reshape the threat
UK firms plan higher cyber spending as AI adoption raises security concerns
CERT-In urges 12-hour patching of exposed flaws as AI compresses exploitation timelines
The infostealer payload in this campaign collect a vast amount of data, from collaboration authentication keys to cryptocurrency wallets
AI risks threaten to permeate supply chains through unvetted code and unaudited suppliers
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<h2><strong>Advisory at a Glance</strong></h2> <table> <tbody> <tr> <th>Title</th> <td>Iranian-Affiliated Cyber Actors Exploit Programmable Logic Controllers Across US Critical Infrastructure</td> </tr> <tr> <th>Original Publication</th> <td><strong>April 7,…
<h2><strong>Summary</strong></h2> <p><strong>Note:</strong> This joint Cybersecurity Advisory is being published as an addition to the Cybersecurity and Infrastructure Security Agency (CISA) May 6, 2025, joint fact sheet <a…
<h2><strong>Executive summary</strong></h2> <p>People’s Republic of China (PRC) state-sponsored cyber threat actors are targeting networks globally, including, but not limited to, telecommunications, government, transportation, lodging, and military…
2.5 million people were affected, in a breach that could spell more trouble down the line.
Researchers uncover a watering hole attack likely carried out by APT TA423, which attempts to plant the ScanBox JavaScript-based reconnaissance tool.
Over 130 companies tangled in sprawling phishing campaign that spoofed a multi-factor authentication system.