Microsoft is warning that post-quantum cryptography cannot be deployed safely by simply swapping encryption algorithms. Threat modeling must first uncover hidden cryptographic dependencies, ownership gaps, and architecture limits that automated scanners may miss. Scanners cannot see the whole cryptographic picture

Source

Copilot Notebooks is rolling out support for Markdown, plain-text, and Rich Text Format files, allowing teams to import READMEs, runbooks, system logs, transcripts, and ticket exports without converting them first. The Microsoft 365 Copilot update makes the notebook more useful for incident response, project onboarding, and support analysis. Three formats expand notebook sources

Source

Windows 11 26H1 build 28000.2796, released as KB5120996, is moving from Release Preview toward the September 8, 2026, general rollout. The build that previously appeared in Windows 11 Release Preview adds external fingerprint support, improved search, and Voice Access features including Voice Isolation and Korean language support. September update takes shape

Source

Windows 11 Release Preview users can now move the taskbar to the top, left, right, or bottom of the screen, bringing Microsoft’s planned return of a movable taskbar into hands-on testing. Microsoft is targeting the September 2026 Patch Tuesday update for the stable rollout, alongside a smaller taskbar option and broader Start, Search, and File Explorer changes. Release Preview opens the taskbar change

Source

DeepSeek has released DeepSeek Harness as an MIT-licensed developer preview that lets teams replace nearly every part of an AI agent without modifying its core. The Cordis-based tool is available through npm, but its developers warn that compatibility-breaking changes are still expected. As AI systems mature, many important advances are shifting from raw model intelligence to improvements in the harnesses that manage tools, context, memory, workflows, and interfaces. By open-sourcing this crucial layer, DeepSeek could intensify competition with OpenAI and Anthropic. Everything is a plugin.

Source

Anthropic is applying Claude’s invisible text watermark globally, not only in the European Union, while withholding a public detector for now. The system subtly steers Claude toward statistically favored “inconsequential” words, creating a signal that can identify likely AI involvement across sufficiently long passages without visibly changing the text. Word choices carry the signal

Source

Microsoft has clarified why Windows 11 and Windows 10 PCs can reboot repeatedly during the ongoing Secure Boot certificate rollout: the process may stage changes, write them into UEFI firmware, and then boot with a newly signed bootloader. The behavior expands on multiple reboots during large Windows 11 updates and can be followed by additional restarts for pending firmware or driver updates. Secure Boot changes require several boot phases

Source

Microsoft will disable Excel’s COPILOT() function on September 14, 2026, ending its year-long test for Frontier and Insider customers. The function’s AI capabilities are not disappearing entirely, but users will need to use Excel’s Copilot side pane or Dynamic Action Button instead. Excel loses its worksheet AI function

Source

Microsoft retired the standalone Microsoft Defender Threat Intelligence (MDTI) experience on August 1, 2026. Its threat intelligence capabilities now appear in the Microsoft Defender portal for Microsoft Defender XDR and Microsoft Sentinel. For administrators, this is mainly a portal and licensing change, but verify where your security team accesses intelligence before removing an existing MDTI subscription.

Source

GitHub Copilot’s latest weekly release makes Agent Plugins 1.0 generally available across VS Code, Copilot CLI, the GitHub Copilot SDK, and the Copilot app, allowing developers to reuse one plugin across compatible agent tools. The update also adds Kimi K3, image understanding for MAI-Code-1.1-Flash, and several controls for managing long-running CLI agents. One plugin across multiple Copilot tools

Source

Grok 4.6 is rolling out across GitHub Copilot’s eight supported development surfaces, including Visual Studio Code, Copilot CLI, JetBrains, Xcode, and Eclipse. Business and Enterprise administrators must explicitly enable its policy, while all users should expect a gradual release and usage-based billing. Broad Copilot availability

Source

Attackers are exploiting CVE-2026-65400 in macOS Screen Sharing to obtain root access and install Monero cryptocurrency miners on exposed Macs. A working exploit was reportedly developed from Apple’s patch in about four hours, increasing the risk that more attackers will target systems with TCP port 5900 reachable from the internet. Internet-exposed Macs are at greatest risk

Source

OpenAI’s enterprise business now generates more revenue than its consumer operation, CFO Sarah Friar told investors, marking a faster-than-expected shift away from its ChatGPT subscription base. Business revenue grew 32% in July, while the company’s annualized revenue run rate reached $40 billion. Enterprise growth crosses the line

Source

Microsoft has published new Windows 11 Release Preview builds for its supported versions, including Build 28000.2796 for version 26H1. Builds 26100.9267 and 26200.9267 are also available for Windows 11 versions 24H2 and 25H2, respectively. Three Windows 11 versions updated

Source

Microsoft has delayed Exchange Server Subscription Edition CU1 beyond its original first-half 2026 target and now says it still cannot provide a firm release date. The team is continuing to fold monthly security fixes into its internal CU1 build and plans to release it when the update reaches a stable point without an immediate security release looming. Security work is taking priority

Source

Microsoft has released Windows 11 August 2026 update KB5121003, including a fix for the actively exploited CVE-2026-68820 zero-day. The cumulative update also delivers features from the planned August update, such as TPM-secured KMS activation and expanded controls for local AI components.

Source

OpenAI’s Computer History feature can leave users’ recorded Mac activity in unencrypted Markdown files, even though its temporary event data is deleted after 48 hours. The opt-in feature tracks Mac work without screenshots, turning clicks, keystrokes, app switches, and other accessibility events into memories that ChatGPT and Codex can reuse.

Source

Alibaba has delivered the promised Qwen 3.8 open weights after previously previewing the 2.4-trillion-parameter model and signaling a release soon in its Qwen 3.8 announcement. The new Qwen3.8-27B is a 27-billion-parameter multimodal model licensed under Apache 2.0, with a native 262,000-token context window that can reach one million tokens using YaRN.

Source

Zhipu AI says GLM-5.3 delivers a 50% coding improvement through post-training alone, while its cybersecurity skills have advanced enough to uncover thousands of vulnerabilities. Z.ai now claims GLM-5.3 has taken the open-weight coding crown from Alibaba’s competing Qwen 3.8 model.

Source