LATEST

Hermes Agent - PKCE Session Takeover via Redirect-URI Parser Confusion

Hermes Agent - PKCE Session Takeover via Redirect-URI Parser Confusion Note: Another researcher identified the same vulnerability during the disclosure process with the Nous Researcher team.In Hermes Agent, the public GET /auth/native/authorize flow validates the redirect_uri with Python's urllib.parse.urlparse, then hands the raw, unnormalized value back to the browser after authentication.The two parsers treat backslashes differently. Python's parser and the browser's WHATWG parser therefore …

Attackers Exploit AhsayCBS Flaws to Deploy XMRig Miners Disguised as Microsoft Edge

Threat actors have been observed exploiting two recently disclosed flaws in the AhsayCBS backup utility to seize control of affected devices and deploy web shells and XMRig cryptocurrency miners. Details of the flaws are below - CVE-2026-105133 (CVSS v4 score: 5.5) - An improper authentication vulnerability in the checkSysPwd() function in the "com/ahsay/obs/api/ApiStructsAction.java"

Microsoft: Outdated Windows devices will stop receiving security updates

Microsoft says devices running unsupported versions of Windows will stop receiving security updates after next year's Windows Update certificate rotation. [...]

Post-quantum authentication: Why organizations should start testing certificate ecosystems now

Prepare for post-quantum authentication by testing certificate ecosystems now. Learn how Microsoft’s PQC TLS Pilot Program helps advance future readiness. The post Post-quantum authentication: Why organizations should start testing certificate ecosystems now appeared first on Microsoft Security Blog.

Lawmakers warn Google could expose Spirit Airlines data in $10 million AI training deal

The proposed sale would include about 100 million emails, 500 million Microsoft Teams messages, employment contracts, employee and timecard records and payroll and tax information, Rep. Steven Horsford (D-NV) said in a press release.

Uranium crypto exchange hacker convicted for stealing $53 million

A Maryland man was found guilty of stealing more than $53 million after hacking the decentralized crypto exchange Uranium Finance twice in April 2021. [...]

Thousands of cheap Android phones shipped with ad-fraud malware

"It’s on the phone before the owner switches it on for the first time, and it can’t be uninstalled," researchers at Bitdefender said about ad fraud malware found on thousands of cheap Android devices.

Inside the Exchange Inspector: How Tenable uses OpenAI GPT cyber models to review open-source AI agents

Community-built AI agents, skills, and MCP servers are landing in SOC workflows fast. Here’s what the Exchange Inspector tests before a listing earns its vetted tag on the CyberAgents Exchange. Three tools have already passed.Key takeawaysEvery Inspector-vetted listing clears three gates: an automated check, a frontier model assessment, and human verification. Tenable uses Tenable One AI Exposure to screen for prompt injection and exposed secrets, and OpenAI GPT Cyber models to assess the code …

Microsoft Teams to get support for third-party deepfake detection tools

Microsoft will soon introduce support for third-party deepfake detection solutions and impersonation protection in Teams meetings. [...]

U.S. Offers Up to $10 Million for Tips on Zhang Yu, Charged in HAFNIUM Hacks

The U.S. State Department is offering up to $10 million for information leading to the identification or location of Zhang Yu, a Chinese national charged in the United States in connection with the 2021 Microsoft Exchange Server attacks known as HAFNIUM. The reward is for information leading to his identification or location, the news outlet NTD reported this week, citing a notice

Anthropic Gives Vetted Defenders Fewer Claude Guardrails

Anthropic has merged Project Glasswing into a tiered access program for its advanced cyber LLMs, including Opus, Sonnet, and Mythos.

CVE-2026-7461 - OS Command Injection in Amazon ECS Agent via FSx Windows File Server Volume Credentials

Four compliance frameworks, one security team: Why fragmented university security raises regulatory risk

In Part 1 of this series, we looked at the security challenges created by fragmented, campus-by-campus environments. Higher education also faces a second pressure that makes that fragmentation harder to sustain: overlapping compliance obligations across FERPA, GLBA, HIPAA, and CMMC.Each framework brings different requirements, reporting timelines, and consequences for failure. Managing them across one institution is already complex, but across a multi-campus university system with separate tool…

Microsoft, Adobe, Apple, and Foxit vulnerabilities

Cisco Talos’ Vulnerability Discovery & Research team recently disclosed vulnerabilities in Adobe, Apple, Foxit Reader, and Microsoft.The vulnerabilities mentioned in this blog post have been patched by their respective vendors, in adherence to Cisco’s third-party vulnerability disclosure policy. For Snort coverage that can detect

3 lessons from frontier AI vulnerability research

Read how How Microsoft Security's FORGE Lab is scaling vulnerability research from Windows to the Linux kernel. The post 3 lessons from frontier AI vulnerability research appeared first on Microsoft Security Blog.

Microsoft Outlook to block MSIX attachments starting November

Microsoft announced that it will add .msix and .msixbundle attachments to the list of blocked attachments in Outlook Web and the new Outlook Windows client starting next month. [...]

Hadrian Raises $40 Million to Expand Autonomous Offensive Security Platform

Hadrian offers an agentic offensive security platform that allows defenders to operate at the same speed as attackers. The post Hadrian Raises $40 Million to Expand Autonomous Offensive Security Platform appeared first on SecurityWeek.

Phishing Campaign Abuses Microsoft Power BI to Deploy Rogue RMMs

A recent phishing campaign abused Microsoft Power BI links to deliver multiple rogue ScreenConnect clients.

'BigDiskBuster' Leaves Microsoft Defender Running While Blocking Updates

Not quite an EDR-killer, but the proof-of-concept cyber technique creates a silent virus detection gap while service runs normally, no exploit required.

CISO perspectives on managing vulnerability risks in the age of AI

Learn how CISOs can mitigate cybersecurity risks and increase resilience in the age of AI-powered vulnerability management. The post CISO perspectives on managing vulnerability risks in the age of AI appeared first on Microsoft Security Blog.

CVE-2026-96940: Microsoft Fixes Exchange Server Flaw For Which Exploitation Is More Likely

Microsoft released emergency updates for Exchange Server to fix CVE-2026-96940, a high-severity flaw that can let attackers gain higher privileges. Microsoft has released out-of-band security updates for Exchange Server to fix a high-severity vulnerability tracked as CVE-2026-96940 (CVSS score of 8.8). The flaw is caused by weak authorization and can allow an authenticated attacker to […]

8.8 Million Impacted by Data Breach at Denmark’s Central Person Register

Hackers abused a company’s lawful access to the CPR system to steal the personal information of registered citizens. The post 8.8 Million Impacted by Data Breach at Denmark’s Central Person Register appeared first on SecurityWeek.

Nikkei discloses breaches of employees’ Microsoft, Google email accounts

Over the weekend, Japanese publishing giant Nikkei disclosed that unknown attackers recently breached two employee email accounts and used one to send thousands of phishing emails. [...]

Denmark Says Attackers Accessed CPR Data for 8.8 Million People via Company Account

Unauthorized parties have gained access to the names, addresses, and personal identification numbers of about 8.8 million people, living and dead, in Denmark's national population register, the country's digitalization ministry said on October 5. They used a private Danish company's lawful right to look up records in the Central Person Register (CPR). The ministry has told people never to

ClickFix Smuggles Payloads Through Browser Cache to Bypass Windows Run Limits

A new type of ClickFix attack is using compromised websites to trick users into executing a malicious payload cached in a web browser's cache. "Instead of downloading and executing remote payloads like the typical attack pattern, in this attack, the websites pre-fetch a script payload into the browser cache disguised as a PNG file," the Microsoft Threat Intelligence team said in a post on X.

AWS Continuum sets a new standard in autonomous code security

As AI models become more capable, they uncover more security vulnerabilities and identify increasingly sophisticated paths to exploit them, raising the bar for how quickly defenders must respond. Security teams now face more potential vulnerabilities than their existing processes were designed to handle — each requiring investigation, reproduction, and a repair that must be tested […]

Microsoft Exchange Flaw Lets Authenticated Attackers Read Other Users' Mailboxes

Microsoft has released out-of-band security updates to address a high-severity flaw in Microsoft Exchange Server that could allow an attacker to escalate privileges under certain conditions. The vulnerability, tracked as CVE-2026-96940, is rated 8.8 on the CVSS scoring system. "Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a

Denmark population registry data breach affects 8.8 million people

Denmark's Central Population Register (CPR) is warning of a data breach that exposed the personal information of approximately 8.8 million registered individuals. [...]

tenfold CE: Our free Identity Governance tool just got 2 new features

tenfold has added shared content governance and real-time event auditing to its free Community Edition for organizations with under 150 users. The new features help teams manage Microsoft 365 sharing and investigate suspicious identity activity. [...]

Microsoft: Windows KB5124010 update crashes some games and apps

Microsoft confirmed over the weekend that some games and applications using AC-3 (Dolby Digital) audio decoding will crash after installing the September 2026 KB5124010 Windows 11 preview update. [...]