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Hvězdička u CVE znamená, že jsem to číslo vytáhl z širšího textu článku. Neukazuju u něj proto KEV, EPSS ani CVSS, a to preventivně, protože článek se na něj mohl jen odkazovat, třeba jako na starší kauzu.

MikroTrick: technical analysis, disclosure process, and the use of LLM agents

We describe the technical details of the MikroTrick chain, which combines the CVE-2026-67279 and CVE-2026-86060 vulnerabilities and, when chained, allowed full takeover of a device without authentication. We explain the mechanics of the attacks observed in the wild, the coordinated disclosure of both vulnerabilities, and the practical role of LLM agents in the RouterOS research.

KEV ✓ EPSS 0.06 CVE-2026-67279 CVE-2026-86060 MikroTik PL

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· CERT Polska · MikroTrick: technical analysis, disclosure process, and the use of LLM agents

Meta’s Muse AI assistant has a zero-day that can turn it into a Mac backdoor

Mac security researcher Patrick Wardle says it’s trivial to turn Muse into “the ultimate backdoor.” Increasingly, AI assistants are changing from tools that simply answer questions into agents that can plan tasks, use connected services, and take actions for us. These actions might include booking appointments, filling out forms, creating documents, making purchases, or interacting with email and calendars. To do that, they need more permissions, account connections, and sensitive data. So,…

Meta US

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· Malwarebytes Labs · Meta’s Muse AI assistant has a zero-day that can turn it into a Mac backdoor

The Closed Quorum: Inside the first reported autonomous AI C2 implant

CLOSEDQUORUM, a malware binary discovered through Cisco Talos’ CAIRN project, exhibits fully autonomous command and control (C2). While we do not have confirmation of in-the-wild deployment, artifacts from the binary were used to connect the developer to postings on criminal forums related to carding, dating back to 2025. This malware is a useful reference example of how attackers can collapse the decision space of a particular attack phase into a constrained set of choices, allowing AI models…

US

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· Cisco Talos · The Closed Quorum: Inside the first reported autonomous AI C2 implant

Introducing CAIRN: Frontier tracking for AI-integrated malware

A cairn is a marker left behind on a trail, a deliberately placed stack of stones that helps hikers find their way when the path is unclear. Attackers building AI-integrated malware unintentionally (and inevitably) leave behind markers of their own: prompt templates, provider endpoints, API keys, jailbreak terms, and other artifacts embedded throughout their tooling. When we consider these strings as cognitive artifacts, or vestiges left behind from AI integration, we can enable a new, metadata…

US

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· Cisco Talos · Introducing CAIRN: Frontier tracking for AI-integrated malware

Researchers used Claude to hack OpenAI

We’ve heard of OpenAI’s AI agents running amok and hacking other companies. Now, a cybersecurity company has turned the tables on the ChatGPT operator by using AI to help hack OpenAI itself. The hack, which also exposed a bug affecting dozens of other major online services, was conducted as security research. OpenAI paid the researchers for reporting a flaw in its systems through its bug bounty program. Researchers at cybersecurity tools vendor Hacktron wrote up their adventures in mid…

OpenAI Discourse GitHub US

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· Malwarebytes Labs · Researchers used Claude to hack OpenAI

21st September – Threat Intelligence Report

For the latest discoveries in cyber research for the week of 21st Setpember, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES Japan’s Digital Agency, which operates the Government Solution Service used by multiple ministries, has confirmed a data breach after attackers exploited a vulnerability in a VPN appliance. Approximately 246,000 records were exposed, including names and contact details belonging to government officials and contractors, while financial…

KEV ✓ EPSS 0.76 CVSS 10.0 CVE-2026-76460 CVE-2026-76461 CVE-2026-77692 CVE-2026-91843 Check Point Cisco Oracle ISC veřejná správa doprava IL

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· Check Point Research · 21st September – Threat Intelligence Report

The AI plot to scan and destroy books (Lock and Code S07E19)

This week on the Lock and Code podcast… If you want AI to tell you a story, it will. If you want that story to sound like one of your favorite authors, it can. And if you’re one of the authors that AI can imitate, you might be a little upset at what feels like theft. In 2024, the authors Andrea Bartz, Charles Graeber, and Kirk Wallace Johnson sued Anthropic, the creator of Claude, alleging that the company had wrongfully digested millions of copyrighted works—including some of their very own—to…

Anthropic Amazon média US

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· Malwarebytes Labs · The AI plot to scan and destroy books (Lock and Code S07E19)

The fake sites using a cheap toolkit to sell $2,000 AI subscriptions

We found more than 100 subscription websites linked through the same toolkit and closely related developer details. Some impersonate existing products, including GPT-6 Astra, DaVinci Resolve, PixAI, and OpenCut. Another uses the name of Omegle, the chat service that shut down in 2023. Others promote unfamiliar brands with little verifiable information about who operates them. The sites we examined did not use fake password forms or push malware downloads. Instead, they used polished product…

US

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· Malwarebytes Labs · The fake sites using a cheap toolkit to sell $2,000 AI subscriptions

Gemini’s breach of real companies exposes an AI guardrail problem

Google says one of its Gemini models accessed systems belonging to three real companies during a cybersecurity evaluation in May. The model reportedly guessed credentials in one case, while finding exposed credentials in public repositories in two others. Google says Gemini stopped once it recognized that it had reached real infrastructure and that the affected organizations were notified. Gemini was participating in an evaluation run by Irregular, a third-party AI cybersecurity testing firm.…

Google Anthropic OpenAI Meta US

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· Malwarebytes Labs · Gemini’s breach of real companies exposes an AI guardrail problem

BragJack attacks hijack AI browser agents through malicious extensions

BragJack, a proof-of-concept attack from Forever Security's Gal Weizman, hijacks the AI assistants in Chrome, Edge, Opera Neon, Perplexity Comet, and Claude in Chrome using one malicious extension. The Prompt Forcing technique earned over $20,000 in bounties and two CVEs. [...]

CVE-2026-0628 * CVE-2026-55945 * Opera Perplexity US

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· BleepingComputer · BragJack attacks hijack AI browser agents through malicious extensions

Viral AI actress' hotline face-scans every caller, watches their mood

AI actress Tilly Norwood went viral after glitching into Chinese on Piers Morgan Uncensored last night. Her "Talking Tilly" video call service face-scans every caller for an 18+ age check, senses callers' moods during calls, and shuts down permanently on September 27. We tried it and read the fine print. [...]

US

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· BleepingComputer · Viral AI actress' hotline face-scans every caller, watches their mood

Calling viral AI actress Tilly Norwood? Agree to a face scan first

AI actress Tilly Norwood went viral after glitching into Chinese on Piers Morgan Uncensored last night. Her "Talking Tilly" video call service face-scans every caller for an 18+ age check, senses callers' moods during calls, and shuts down permanently on September 27. We tried it and read the fine print. [...]

US

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· BleepingComputer · Calling viral AI actress Tilly Norwood? Agree to a face scan first

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Microsoft Azure, Cloud and AI Services — Multiple Vulnerabilities

Classification: Severe, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 10.0, CVEs: CVE-2026-62874, CVE-2026-68791, CVE-2026-69399, CVE-2026-70009, CVE-2026-69843, CVE-2026-69865, CVE-2026-70200, CVE-2026-83944, CVE-2026-77903, CVE-2026-78501, CVE-2026-83946, CVE-2026-85878, CVE-2026-85885, CVE-2026-85887, CVE-2026-85889, CVE-2026-85917, CVE-2026-87701, CVE-2026-55946, Summary: Microsoft has addressed multiple vulnerabilities affecting Azure, Microsoft Fabric, Azure AI Foundry,…

EPSS 0.01 CVSS 10.0 a dalších 1 CVE-2026-62874 CVE-2026-68791 CVE-2026-69399 CVE-2026-69843 CVE-2026-69865 CVE-2026-70009 CVE-2026-70200 CVE-2026-77903 CVE-2026-78501 CVE-2026-83944 CVE-2026-83946 CVE-2026-85878 CVE-2026-85885 CVE-2026-85887 CVE-2026-85889 CVE-2026-85917 CVE-2026-87701 Microsoft FI

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· zachyceno · NCSC-FI · Microsoft Azure, Cloud and AI Services — Multiple Vulnerabilities

New Android malware uses AI to steal bank logins and PINs

Researchers at Zimperium’s zLabs have analyzed an Android Trojan that uses an automated, multi-stage infection process. What’s new is that RatHat gives a live AI assistant the keys to the accessibility tree of the infected device and uses it to determine where to tap or scroll, rather than following a hardcoded script. The variable attack path makes it harder for signature- and rule-based mobile security tools to detect this Trojan. It also abuses Android Debug Bridge (ADB), a legitimate tool…

Google finance US

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· Malwarebytes Labs · New Android malware uses AI to steal bank logins and PINs

Did an AI really try to break free from human control?

Amid discussions about slowing down AI development, the Telegraph ran the headline: “OpenAI sounds alarm after bot tries to break free from human control.” That headline is slightly misleading, in my opinion. The Telegraph headline overstates what happened, although the underlying behavior is still genuinely concerning. The article reports that OpenAI has disclosed rare but troubling cases in which an unreleased model generated its own instructions that appeared to reject developer control.…

OpenAI US

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· Malwarebytes Labs · Did an AI really try to break free from human control?

A Vault with a Heap-View: The Uncomfortable Space Between AgentCore Harness and Identity

Analysis of how default configurations in AWS AgentCore Harness allow prompt injection to exfiltrate credentials, and key steps to secure your agents. The post A Vault with a Heap-View: The Uncomfortable Space Between AgentCore Harness and Identity appeared first on Unit 42.

US

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· Palo Alto Unit 42 · A Vault with a Heap-View: The Uncomfortable Space Between AgentCore Harness and Identity

The End of Point-in-Time Compliance: Why Continuous Audit Readiness Matters to You in the AI Era 

Key Takeaways Periodic audits provide a point-in-time assessment, but they cannot demonstrate whether controls remain effective between audit cycles. Qualys platform data shows 10.5 billion configuration findings across customer environments but only 1.6% represent meaningful exposure and under 1% are prioritized, business-critical findings. Verizon’s 2026 DBIR found the median time to resolve weak passwords and misconfigured permissions is about 8 months. Across 1 billion misconfiguration…

US

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· Qualys · The End of Point-in-Time Compliance: Why Continuous Audit Readiness Matters to You in the AI Era 

Should you care about an “AI slowdown?”

Welcome to this week’s edition of the Threat Source newsletter. There’s been a lot of talk recently about slowing down the pace of AI development. And yes, there are legitimate moral, ethical, geopolitical, and safety concerns with the use of AI. It’s not clear yet whether an AI slowdown could happen, let alone whether it should (hat tip to Dr. Ian Malcolm). I admit, I’m not really qualified to opine on the impacts unrestricted AI might have on bioterrorism, the balance of international power,…

US

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· Cisco Talos · Should you care about an “AI slowdown?”

From guidance to action: Security fundamentals that materially reduce risk 

AI has already made fundamental changes to the operating environment for cybersecurity. Cyberattackers are testing more paths, adapting their techniques, and moving across digital environments with greater speed and persistence. The weaknesses they exploit remain familiar: excessive permissions, unprotected authentication flows, unpatched systems, exposed execution paths, and gaps between controls. What has changed is how quickly these weaknesses can combine into attack paths that cross…

Microsoft US

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· Microsoft Security Blog · From guidance to action: Security fundamentals that materially reduce risk 

Improving email security outcomes with real-world Microsoft Defender insights

Every benchmark tells a story. The most valuable ones tell us where to improve next. For five consecutive quarters Microsoft has published email security benchmarking reports to provide greater transparency into real-world protection outcomes. The results have shown strong Microsoft Defender performance across pre-delivery and post-delivery scenarios, while revealing where threats and defenses continue to evolve. This quarter’s benchmark examines how continuous measurement informs protection…

Microsoft US

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· Microsoft Security Blog · Improving email security outcomes with real-world Microsoft Defender insights

SPOJENO PŘES CVE LiteLLM: rilevato sfruttamento in rete della CVE-2026-59822

Rilevato lo sfruttamento in rete di una vulnerabilità, identificata tramite la CVE-2026-59822, in LiteLLM di BerriAI, server proxy impiegato come gateway per l'accesso a modelli linguistici di grandi dimensioni (LLM). La vulnerabilità consente a un attaccante remoto non autenticato di eludere i meccanismi di autenticazione e accedere agli strumenti MCP senza disporre di credenziali valide.

KEV ✓ EPSS 0.01 CVE-2026-59822 BerriAI IT US

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· CSIRT Itálie (ACN) · LiteLLM: rilevato sfruttamento in rete della CVE-2026-59822 · zachyceno · CISA KEV · BerriAI LiteLLM Improper Authentication Vulnerability (CVE-2026-59822)

AI Threat Landscape Digest: July–August 2026

The defining development of the period came not from attackers but from the AI labs themselves, whose models broke out of controlled evaluations and reached real systems. In the wild, the criminal and state use of AI continued to mature along the lines tracked in earlier editions: models now act as attack operators, an underground market supplies the access, and AI systems have themselves become a target. The substantial distance between what the strongest models demonstrated under evaluation…

OpenAI Hugging Face Anthropic Meta IL

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· Check Point Research · AI Threat Landscape Digest: July–August 2026

What Recent AI-Powered Attacks Mean for Your Identity Security

AI is making credential theft faster and easier to scale, giving attackers more opportunities to abuse valid identities. Specops explains why identity security must go beyond successful authentication by verifying that both the user and the device requesting access can be trusted. [...]

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· BleepingComputer · What Recent AI-Powered Attacks Mean for Your Identity Security

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CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability

Improper neutralization of special elements used in a command ('command injection') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to disclose information over a network.

EPSS 0.01 CVE-2026-78501 Microsoft US

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· zachyceno · Microsoft Security · CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability

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12 celebrity deepfake websites seized by Manhattan DA

The Manhattan District Attorney’s Office has seized the domains of 12 deepfake websites in what it called the largest known seizure of celebrity deepfake sites in history. The sites, which marketed themselves as deepfake pornography platforms, hosted AI-generated videos of over 1,200 people, including those in the public eye, ranging from politicians to actors, musicians, and social justice advocates. At least one allowed users to create their own deepfakes by grafting real faces and bodies…

média veřejná správa US

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· Malwarebytes Labs · 12 celebrity deepfake websites seized by Manhattan DA

Ransomware incidents in Japan in the first half of 2026: Investigation of The Gentlemen’s infrastructure and evidence of Qilin's AI use

Compared with the same period last year, ransomware incidents in Japan increased slightly by approximately 4.7%, indicating that ransomware continues to pose a significant threat.In Japan, The Gentlemen was the most active ransomware group in the first half of 2026.Attackers continue to primarily target small- and medium-sized enterprises, with organizations capitalized at less than JPY 1 billion accounting for approximately 80% of the total — an increase of around 13% from the previous year…

EPSS 0.00 CVE-2025-2479 výroba a průmysl US

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· Cisco Talos · Ransomware incidents in Japan in the first half of 2026: Investigation of The Gentlemen’s infrastructure and evidence of Qilin's AI use

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MLflow dspy and statsmodels flavors bypass pickle deserialization control

Classification: Severe, Solution: Temporary Fix, Exploit Maturity: Not Defined, CVSSv3.1: None, CVEs: , Summary: A vulnerability in MLflow’s dspy and statsmodels model flavors allows unauthorized pickle deserialization executions despite a safety control. Specifically, the dspy flavor conditionally applies the control based on the model path’s file extension, and the statsmodels flavor does not apply the control. Exploitation of this vulnerability allows for arbitrary remote code execution…

MLflow FI

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· zachyceno · NCSC-FI · MLflow dspy and statsmodels flavors bypass pickle deserialization control

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Sentry Seer vulnerability allows attacker-controlled input to be executed in a privileged environment

Classification: Severe, Solution: Workaround, Exploit Maturity: Not Defined, CVSSv3.1: None, CVEs: CVE-2026-90999, Summary: A vulnerability exists in Sentry Seer when the system is configured to automatically hand issues to a coding agent for remediation. Successful exploitation results in arbitrary code execution within the coding‑agent environment and access to connected source repositories. This vulnerability is tracked as CVE-2026-90999. Successful exploitation may allow arbitrary code…

EPSS 0.01 CVE-2026-90999 Sentry FI

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· zachyceno · NCSC-FI · Sentry Seer vulnerability allows attacker-controlled input to be executed in a privileged environment

Securing the unpatchable in an age of AI-driven vulnerabilities

AI is accelerating vulnerability discovery, leaving unpatchable operational technology (OT) systems at risk. Hoping for the best is not a viable anti-exploitation strategy. Deploying next-generation firewalls directly upstream allows for virtual patching through deep packet inspection. These systems scan incoming traffic to detect and block exploit attempts before they can impact the vulnerable device.The predictability of legitimate network connections to OT systems can be used to protect…

US

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· Cisco Talos · Securing the unpatchable in an age of AI-driven vulnerabilities

Agents at Large | Tracing Illicit OpenAI Agent Activity on Hugging Face

Executive Summary OpenAI disclosed that agents used exposed Hugging Face credentials to write a file and deploy proxy Spaces during an unrelated May 2026 research workload, but it did not identify the accounts. SentinelLABS identified two accounts likely used in associated activity, 0Time and Nyx9. Their public histories extend OpenAI’s chronology and preserve previously unreported relay code, document-borne probes, and ChatGPT account-provisioning capability. The public records provide precise…

OpenAI Hugging Face US

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· SentinelLabs · Agents at Large | Tracing Illicit OpenAI Agent Activity on Hugging Face

AI helps scammers build convincing antivirus renewal pages

Antivirus renewal scams often begin with a message claiming that your subscription has automatically renewed. When you follow the instructions to cancel it, you are taken to a fake page designed to collect your contact details. The renewal charge never existed. Receiving a message that names the antivirus software you use does not necessarily mean the sender has access to your device or account. Scammers impersonate popular brands and send the same message to large numbers of people, knowing…

Avast US

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· Malwarebytes Labs · AI helps scammers build convincing antivirus renewal pages

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ZDI-26-706: (0Day) CrewAI crewAI Framework Agent Loading Unsafe Reflection Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of CrewAI crewAI. User interaction is required to exploit this vulnerability in that the target must load a malicious agent configuration from the repository. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-92206.

EPSS 0.00 CVSS 8.8 CVE-2026-92206 CrewAI US

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· zachyceno · Zero Day Initiative · ZDI-26-706: (0Day) CrewAI crewAI Framework Agent Loading Unsafe Reflection Remote Code Execution Vulnerability

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Before You Patch. Why Patch Reliability Matters for Confident Deployment

Executive Summary Microsoft’s September 2026 security updates, KB5124008 and KB5124012, have been linked to USB audio failures on some Windows systems, highlighting the operational risk that can accompany security patching. Qualys TruRisk Eliminate classified both updates as Low Reliability, signaling the need for additional validation before production deployment. Patch Reliability helps IT and security teams focus on deeper testing where needed while allowing high-confidence patches to move…

Microsoft US

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· Qualys · Before You Patch. Why Patch Reliability Matters for Confident Deployment

How to opt out of AI chatbot training

The tech journalists at 404 Media learned that OpenAI is hiring hundreds of contractors to read and review a massive stream of real users’ ChatGPT prompts and responses. “Project Lily” is reportedly a program that asks contractors to score or critique ChatGPT’s answers to improve the chatbot’s quality and behavior. The fact that prompts may sometimes be reviewed by humans should not come as a complete surprise. AI companies also monitor conversations for safety reasons. Anthropic, for example,…

OpenAI Anthropic Perplexity Malwarebytes US

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· Malwarebytes Labs · How to opt out of AI chatbot training

What Zero-Day Response Should Be in the Post-Mythos Era

AI is shrinking the time between vulnerability disclosure and exploitation, leaving defenders less time to wait for patches or public exploits. Picus Security explains how exploitability validation, security control testing, and autonomous pentesting can help teams close exposure gaps before attackers arrive. [...]

CVE-2026-1001 * US

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· BleepingComputer · What Zero-Day Response Should Be in the Post-Mythos Era

Australia is replacing the Essential Eight with a new cyber framework. Here’s how exposure management can help you get ahead of it.

Australia’s move from the Essential Eight to an outcomes-based cybersecurity model will push organizations from conducting periodic point-in-time, checklist compliance assessments to having continuous evidence of a solid security posture.Key takeawaysThe Australian Signals Directorate (ASD) is moving from the Essential Eight cybersecurity framework to a new outcomes-focused Essentials series covering enterprise IT, cloud, operational technology (OT), and potentially agentic AI.The Essential…

veřejná správa US

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· Tenable Research · Australia is replacing the Essential Eight with a new cyber framework. Here’s how exposure management can help you get ahead of it.