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Microsoft has introduced the Integrated Security Operations Center, or ISOC, as a public preview inside the Microsoft Defender portal. It brings selected Microsoft Sentinel functions directly into Defender so analysts and AI agents share the same signals and workflows. The goal is to reduce tool switching and give automation a common data foundation. This preview is limited by licensing, workspace rules, and incomplete integration. The Defender home page introduces these ISOC capabilities alongside cases, workbooks, and automation.

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Work IQ is the intelligence layer behind Microsoft 365 Copilot that lets agents query and act on Microsoft 365 work data with the signed-in user's permissions. Custom and third-party agents consume it through APIs billed with Copilot Credits, and you govern that usage in the Microsoft 365 admin center. This article explains what Work IQ is, how access and compliance work, and which billing, spending, discovery, and MCP policy settings you manage as an administrator.

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OpenAI has introduced GPT-6.1 Sol, an upgrade to GPT-6 Sol that it says comes close to GPT-6 Astra on agentic coding, computer use, and professional workflows while charging about one-fifth as much for standard input and output. The model is rolling out now to ChatGPT Work and Codex for eligible paid and enterprise users, with API access under the name gpt-6.1-sol.

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OpenAI has launched dots, a new class of always-on agents that work around the clock, learn from feedback, and act through their own cloud computers. The rollout starts in ChatGPT for Pro and Business Premium users in eligible markets, with enterprise beta access available when an admin enables it.

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OpenAI used its DevDay 2026 keynote to push ChatGPT further into always-on agent territory, unveiling Dots, a paid assistant that works across connected apps, alongside a new $500-a-month Pro tier and the GPT-6.1 Sol model. The company also said ChatGPT now has 1.2 billion weekly users, while the event landed as OpenAI faces fresh scrutiny over AI agents and safety after earlier hacking incidents.

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A new Spectre v2 variant called Branch Target Reuse, or BTR, can pull a Linux root password hash from memory in just a few minutes on affected Intel systems. Researchers say the flaw abuses stale branch-prediction state left behind when JIT-compiled code is replaced, and fixes have already landed in the Linux kernel.

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OpenAI used DevDay 2026 to push Codex beyond coding assistance, adding reusable cloud environments, repository security scanning, and a faster premium “Ultrafast” tier. The company also extended its Agents API with Computer Use, introduced a Decisions API for quick classification-style tasks, and added a code review view in the ChatGPT desktop app, building on the earlier Agents API rollout on Codex-style automation.

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OpenAI used DevDay to push ChatGPT far beyond chat, adding shared workspaces, collaborative documents, slide creation, automation hooks, and deeper Slack and Microsoft Teams integration. The update also adds new pricing and enterprise distribution options, while building on earlier signs that ChatGPT is becoming a more persistent assistant and writing tool in its own right from an always-on ChatGPT assistant to voice-matching drafts.

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Microsoft has started broadly releasing Windows 11 version 26H2, the 2026 feature update that arrives as a lightweight enablement package rather than a full rebuild. Eligible PCs on Windows 11 25H2 or 24H2 should get a quick install, with support lifecycles reset and no new compatibility issues to worry about.

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Citrix NetScaler zero-day exploitation is escalating from patch alerts to full post-compromise tradecraft: attackers are using CVE-2026-88772 and the separately exploited CVE-2026-88771 to plant web shells, gain root access, steal credentials and move into internal networks. The campaign, already flagged in earlier 4sysops coverage of the NetScaler RCE flaws, now appears to have been active since at least early September across government, finance, education, legal and professional-services targets.

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OpenAI has added reusable cloud setups to Codex, letting developers publish a prepared GitHub environment once and reuse it for separate coding tasks on the web, desktop, or mobile. The change keeps each task’s uncommitted work isolated, so engineers can leave a job running in the cloud and reopen it later from another device without losing progress.

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A flaw in a Defense Manpower Data Center file-sharing system exposed Social Security numbers and other personal data tied to more than 3 million people with U.S. military connections. The breach stretched from October 2025 until July 16, 2026, and the Pentagon says there is no sign the information has been misused.

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OpenAI’s annualized revenue run rate is nearing $70 billion, while business-to-business revenue has more than doubled since July, according to sources familiar with the company’s finances. But reported losses have also grown sharply, underscoring how much remains unknown about the cost of that growth.

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Blockchain Dead Drops (BDD) have grown more than fivefold, with daily malicious blockchain writes rising from 2.06 to 11.1, Chainalysis reports. Iranian, North Korean, and Russian-speaking operators are using public ledgers for resilient malware delivery and command-and-control, while open-weight AI tools may be making the technique easier for less-experienced attackers to adopt.

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OpenAI’s Pro page reportedly listed GPT-5.6 Sol, Terra, and Luna as “Unlimited*,” but its published materials do not establish that those models are unlimited across ChatGPT, Work, Codex, and the API. The distinction matters for teams budgeting AI use: access to a model is not the same as unlimited agent work or API calls.

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Meta is opening its Muse AI agent to small businesses, connecting it to tools such as Shopify, QuickBooks, Slack, and Zoom. The rollout gives Muse access to business software and Meta account data, while paid plans offer more usage than the free tier.

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Cloudflare has made Threat Signals available at no cost to every account, bringing AI-assisted open-source threat intelligence into its dashboard and API. The service turns reports from one selected RSS feed into searchable, contextualized threat events whose indicators can be used in WAF policies.

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Cloudflare is opening Application Profiles to help customers identify and block web requests that deviate from an application’s learned patterns—even when they don’t match a known attack signature. The feature learns request structures and adds validation results to traffic data; customers can review those results before creating rules to block suspicious requests.

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