Tag: microsoft
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Microsoft discloses ‘the mother of all’ vulnerability loads, tripling June’s previous record
The company forewarned customers and defenders that a flood of defects would be uncovered by AI. It delivered with a striking exponential increase. First seen on cyberscoop.com Jump to article: cyberscoop.com/microsoft-patch-tuesday-july-2026/
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Microsoft releases Windows 10 KB5099539 extended security update
Microsoft has released the Windows 10 KB5099539 extended security update, which includes the July 2026 Patch Tuesday security updates for 570 vulnerabilities, along with additional security fixes. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-releases-windows-10-kb5099539-extended-security-update/
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Microsoft releases Windows 10 KB5099539 extended security update
Microsoft has released the Windows 10 KB5099539 extended security update, which includes the July 2026 Patch Tuesday security updates for 570 vulnerabilities, along with additional security fixes. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-releases-windows-10-kb5099539-extended-security-update/
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Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-days
Today is Microsoft’s July 2026 Patch Tuesday, and with it comes security updates for a record-breaking 570 flaws, including two zero-day vulnerabilities exploited in attacks and one publicly disclosed. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-july-2026-patch-tuesday-fixes-massive-570-flaws-3-zero-days/
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Windows 11 KB5101650 & KB5099414 cumulative updates released
Microsoft has released Windows 11 KB5101650 and KB5099414 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/windows-11-kb5101650-and-kb5099414-cumulative-updates-released/
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11 Old Microsoft-Signed Linux UEFI Shims Could Let Attackers Bypass Secure Boot
Cybersecurity researchers have discovered 11 old, Microsoft-signed, Unified Extensible Firmware Interface (UEFI) applications that could be abused to bypass Secure Boot on most systems using the modern firmware standard.”An attacker exploiting one of these vulnerable applications can execute untrusted code during system boot, enabling deployment of malicious UEFI bootkits or other malware,” First seen on…
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OAuth Client ID Spoofing Lets Attackers Validate Stolen Microsoft Entra Credentials
At least two distinct threat actors are weaponizing a novel evasion technique called OAuth client ID spoofing in cloud campaigns, while slipping past telemetry.The activity allows users to enumerate user accounts and validate stolen credentials in Microsoft Entra ID environments, without ever generating a successful sign-in event that would otherwise alert defenders. And bad actors…
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Microsoft Entra ID gets passkeys default authentication starting September
Microsoft has announced that passkeys will become the default authentication method for the Entra ID enterprise identity service starting September 2026. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-entra-id-gets-passkeys-default-authentication-starting-september/
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New phishing kits target Microsoft 365 accounts, evade MFA
Two new phishing kits, Jalisco and OmegaLord, have been discovered in attacks targeting Microsoft 365 accounts, using techniques that defeat multi-factor authentication (MFA). First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/new-phishing-kits-target-microsoft-365-accounts-evade-mfa/
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Attackers Distribute Password Attacks Across Fictional OAuth Apps to Evade SOC Alerts
Attackers are increasingly abusing spoofed OAuth application identifiers to enumerate Microsoft Entra ID accounts, test credentials, and fragment authentication activity across hundreds of thousands or millions of fictional applications. The technique exploits how Entra ID processes the client_id parameter in OAuth authentication requests. Every registered OAuth application is assigned a globally unique application identifier, and…
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Microsoft starts testing cleaner Windows Search without ads
Microsoft is now testing a cleaner and faster version of Windows Search that should prioritize relevant results over ads and promotional content. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-starts-testing-cleaner-windows-search-without-ads/
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No one knows how many old shims can still bypass UEFI Secure Boot
The vast majority of UEFI computers carry a Microsoft certificate that will trust a small first-stage loader called a shim, a program Microsoft signs so that Linux and … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/07/14/eset-uefi-secure-boot-bypass/
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Millions of Microsoft Entra Accounts Targeted in OAuth Client ID Spoofing Campaigns
Proofpoint details how attackers spoof OAuth client IDs to probe Microsoft Entra accounts, test credentials and bypass common sign-in detections at cloud scale. First seen on hackread.com Jump to article: hackread.com/microsoft-entra-accounts-oauth-client-id-spoofing/
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Daten im toten Winkel – Datensicherheit: Warum Microsoft Purview nur die halbe Miete ist
Tags: microsoftFirst seen on security-insider.de Jump to article: www.security-insider.de/purview-saas-daten-mittelstand-absichern-a-54596c526b319e294f043d28a1b6adcb/
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Microsoft Entra ID authentication overhaul to start in September 2026
Microsoft will begin rolling out passkeys as the default authentication experience for Microsoft Entra ID in the public cloud on September 1, 2026. Organizations with SMS or … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/07/14/microsoft-entra-passkey-authentication/
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Microsoft Maps Three Salesforce Attack Paths Tied to a Year of ShinyHunters Activity
Attackers whose methods line up with the data-extortion group ShinyHunters have spent the past year walking into corporate Salesforce environments without exploiting a single flaw in the platform.The way in has been the trust the organization had already extended, usually through the OAuth connections that tie Salesforce to the apps and third-party vendors around it.In…
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Microsoft Maps Year-Long ShinyHunters-Linked Salesforce Data Theft Across Three Paths
Attackers whose methods line up with the data-extortion group ShinyHunters have spent the past year walking into corporate Salesforce environments without exploiting a single flaw in the platform.The way in has been the trust the organization had already extended, usually through the OAuth connections that tie Salesforce to the apps and third-party vendors around it.In…
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Microsoft Maps Year-Long ShinyHunters-Linked Salesforce Data Theft Across Three Paths
Attackers whose methods line up with the data-extortion group ShinyHunters have spent the past year walking into corporate Salesforce environments without exploiting a single flaw in the platform.The way in has been the trust the organization had already extended, usually through the OAuth connections that tie Salesforce to the apps and third-party vendors around it.In…
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ShinyHunters Hackers Abuse Salesforce OAuth to Bypass MFA and Exfiltrate CRM Data
A series of high-impact campaigns linked by overlapping tradecraft to ShinyHunters, in which attackers abused trusted Salesforce OAuth relationships to bypass conventional MFA protections, establish persistence, and exfiltrate CRM data at scale. The activity, observed from mid-202520252025 through mid-202620262026, affected organizations in retail, education, and manufacturing. Microsoft emphasized that the campaigns did not exploit an…
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Google and Microsoft Pull ModHeader With 1.6 Million Installs After Dormant Collector Found
Google and Microsoft have pulled ModHeader, a popular header-editing extension with roughly 1.6 million installs across Chrome and Edge, after researchers found a hidden browsing-history collector built into its official store version.The collector was dormant. An empty allow-list kept it switched off, and no proof has emerged that it ever gathered or sent a single…
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Hackers find a new trick to collect Microsoft Entra user data without raising red flags
Organizations should check their logs for signs of an increasingly popular obfuscation technique, Proofpoint said. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/microsoft-entra-user-enumeration-bypass-proofpoint/825052/
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Hackers have found a new trick to collect Microsoft Entra user data without raising red flags
Organizations should check their logs for signs of an increasingly popular obfuscation technique, Proofpoint said. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/microsoft-entra-user-enumeration-bypass-proofpoint/825052/
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Forg365 PhaaS Targets Microsoft 365 with Device Code and AitM Session Theft
A new phishing-as-a-service (PhaaS) operation called Forg365 is using a combination of device code phishing, adversary-in-the-middle (AitM) tactics, antibot evasion, artificial intelligence (AI)-assisted lure creation, and post-compromise mailbox operations targeting Microsoft 365 accounts.Distributed via Telegram and costing $400 a month (or $3,800 per year), attack chains leverage phishing First seen on thehackernews.com Jump to article:…
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Novel OAuth Client ID Spoofing Technique Targets Cloud Environments
New research reveals cyber-attackers can spoof OAuth Client IDs in Microsoft Entra ID, creating a stealthy path into cloud environments First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/novel-spoofing-technique-targets/
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Fake OAuth client IDs are helping attackers slip past sign-in logs
Attackers running account enumeration against Microsoft cloud tenants have added a step that keeps their probing out of the usual telemetry. They spoof the OAuth client ID, … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/07/13/entra-id-oauth-client-id-spoofing/
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Misconfigured Server Reveals Three Evilginx Phishing Operations Targeting Microsoft 365
An attacker running a live Microsoft 365 phishing operation left a Python web server listening on a public port with directory listing switched on. The command that did it: python3 -m http.server 8080, was still sitting in the readable .bash_history.From that one lapse, French security firm Lexfo lifted the operator’s entire toolkit and pivoted through…
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Exposed Server Unmasks Evilginx Operators Stealing Microsoft 365 Sessions and OAuth Tokens
A misconfigured server in Budapest exposed a live phishing operation built to bypass Microsoft 365 multi-factor authentication and retain access to compromised accounts. The server, hosted at 185.163.204[.]7185.163.204[.]7185.163.204[.]7, was running python3 -m http.server 8080 with directory listing enabled, making its operational files publicly accessible. Researchers found phishing configurations, Telegram session artifacts, credential logs, RMM installers,…
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Exposed Server Unmasks Evilginx Operators Stealing Microsoft 365 Sessions and OAuth Tokens
A misconfigured server in Budapest exposed a live phishing operation built to bypass Microsoft 365 multi-factor authentication and retain access to compromised accounts. The server, hosted at 185.163.204[.]7185.163.204[.]7185.163.204[.]7, was running python3 -m http.server 8080 with directory listing enabled, making its operational files publicly accessible. Researchers found phishing configurations, Telegram session artifacts, credential logs, RMM installers,…
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Microsoft demystifies how Windows updates work
Microsoft has published a guide explaining the Windows servicing model, outlining the purpose of monthly security updates, optional preview releases, hotpatch updates, and the … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/07/13/how-microsoft-windows-updates-work/
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Microsoft Tests AI-Powered Copilot Tool to Diagnose Windows 11 Performance Issues
Microsoft is gradually rolling out an optional Copilot feature called PC Insights, which provides the AI assistant with access to real-time information about Windows 11 hardware and performance. This feature, first reported by Windows Latest, is currently being tested with users in the United States and is not yet widely available. PC Insights aims to…