Tag: microsoft
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September updates break File History backup feature
Microsoft warned that the built-in File History backup feature in Windows may stop working on some systems after installing the September 2026 security updates. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-september-updates-break-file-history-backup-feature/
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New Rapuncel Infostealer Abuses Microsoft-Signed Driver to Disable 145 Security Tools
Tags: antivirus, credentials, crypto, cyber, data, detection, endpoint, exploit, intelligence, microsoft, mitigation, threat, tool, windowsA newly identified information-stealing campaign, tracked as Rapuncel, is exploiting a Microsoft-attested kernel driver to terminate up to 145 antivirus (AV) and endpoint detection and response (EDR) processes. This allows attackers to steal browser credentials, cryptocurrency wallet data, chat tokens, and Windows credentials. Researchers from the LastPass Threat Intelligence, Mitigation, and Escalation team, in collaboration…
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New Rapuncel Infostealer Abuses Microsoft-Signed Driver to Disable 145 Security Tools
Tags: antivirus, credentials, crypto, cyber, data, detection, endpoint, exploit, intelligence, microsoft, mitigation, threat, tool, windowsA newly identified information-stealing campaign, tracked as Rapuncel, is exploiting a Microsoft-attested kernel driver to terminate up to 145 antivirus (AV) and endpoint detection and response (EDR) processes. This allows attackers to steal browser credentials, cryptocurrency wallet data, chat tokens, and Windows credentials. Researchers from the LastPass Threat Intelligence, Mitigation, and Escalation team, in collaboration…
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BigDiskBuster Windows Defender DoS Vulnerability Blocks Platform and Signature Updates
A recently published proof-of-concept project named BigDiskBuster claims to prevent Microsoft Defender from completing its platform and security intelligence signature updates. This could create a potential denial-of-service condition, leaving Windows endpoints operating with outdated anti-malware protection. The project, published on GitHub by the user “MSNightmare,” is described as a >>Windows Defender Update Denial of Service…
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BigDiskBuster Windows Defender DoS Vulnerability Blocks Platform and Signature Updates
A recently published proof-of-concept project named BigDiskBuster claims to prevent Microsoft Defender from completing its platform and security intelligence signature updates. This could create a potential denial-of-service condition, leaving Windows endpoints operating with outdated anti-malware protection. The project, published on GitHub by the user “MSNightmare,” is described as a >>Windows Defender Update Denial of Service…
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BigDiskBuster Windows Defender DoS Vulnerability Blocks Platform and Signature Updates
A recently published proof-of-concept project named BigDiskBuster claims to prevent Microsoft Defender from completing its platform and security intelligence signature updates. This could create a potential denial-of-service condition, leaving Windows endpoints operating with outdated anti-malware protection. The project, published on GitHub by the user “MSNightmare,” is described as a >>Windows Defender Update Denial of Service…
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BigDiskBuster Windows Defender DoS Vulnerability Blocks Platform and Signature Updates
A recently published proof-of-concept project named BigDiskBuster claims to prevent Microsoft Defender from completing its platform and security intelligence signature updates. This could create a potential denial-of-service condition, leaving Windows endpoints operating with outdated anti-malware protection. The project, published on GitHub by the user “MSNightmare,” is described as a >>Windows Defender Update Denial of Service…
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BigDiskBuster Windows Defender DoS Vulnerability Blocks Platform and Signature Updates
A recently published proof-of-concept project named BigDiskBuster claims to prevent Microsoft Defender from completing its platform and security intelligence signature updates. This could create a potential denial-of-service condition, leaving Windows endpoints operating with outdated anti-malware protection. The project, published on GitHub by the user “MSNightmare,” is described as a >>Windows Defender Update Denial of Service…
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BigDiskBuster Windows Defender DoS Vulnerability Blocks Platform and Signature Updates
A recently published proof-of-concept project named BigDiskBuster claims to prevent Microsoft Defender from completing its platform and security intelligence signature updates. This could create a potential denial-of-service condition, leaving Windows endpoints operating with outdated anti-malware protection. The project, published on GitHub by the user “MSNightmare,” is described as a >>Windows Defender Update Denial of Service…
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Hackers Abuse Microsoft Teams to Pose as IT Support and Steal Employee Passwords
Threat actors are increasingly abusing Microsoft Teams’ external chat capabilities to impersonate corporate IT help desks. They trick employees into installing malware, granting remote access, and stealing Windows credentials. These attacks exploit a simple vulnerability: employees tend to distrust suspicious emails but often do not apply the same caution to collaboration platforms like Teams. Attackers…
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ClickFix Lures Deploy ChainScript RAT Using Polygon to Rotate C2 Infrastructure
Threat actors are leveraging ClickFix-like lures to deliver a previously undocumented remote access trojan (RAT) called ChainScript.”ChainScript has appeared under multiple build names, including ComponentTask33, UpdateDigital, HostShared, and OrchidViolet66, while presenting itself as Spotify, Zoom Workplace, and Microsoft Teams software,” Blackpoint Adversary Pursuit Group (APG) First seen on thehackernews.com Jump to article: thehackernews.com/2026/09/clickfix-lures-deploy-chainscript-rat.html
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UK Police Data Faces Long-Standing Microsoft Cloud Security Concerns
A 2017 UK assessment warned that police data on Microsoft Azure could face foreign access risks. The risks may still exist. A Guardian investigation has surfaced a 2017 document signed off by then City of London police commissioner Ian Dyson, who also held the title of senior information risk owner for the entire country. That…
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BragJack Attack Hijacks AI Assistants in 5 Popular Browsers With Zero Clicks
Security researchers have revealed a zero-click attack technique known as BragJack, which could enable a malicious browser extension to hijack built-in AI assistants in popular browsers like Google Chrome, Microsoft Edge, Opera Neon, Perplexity Comet, and Claude in Chrome. The research, published on September 16 by Gal Weizman of Forever Security, describes a common architectural…
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BragJack Attack Hijacks AI Assistants in 5 Popular Browsers With Zero Clicks
Security researchers have revealed a zero-click attack technique known as BragJack, which could enable a malicious browser extension to hijack built-in AI assistants in popular browsers like Google Chrome, Microsoft Edge, Opera Neon, Perplexity Comet, and Claude in Chrome. The research, published on September 16 by Gal Weizman of Forever Security, describes a common architectural…
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Hackers Are Using Passkey Updates as a New Microsoft Phishing Hook
Microsoft warns attackers are using passkey and MFA update requests to phish employees, hijack sessions, and access Microsoft 365 data. The post Hackers Are Using Passkey Updates as a New Microsoft Phishing Hook appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-microsoft-passkey-phishing-mfa-device-code/
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Sensitive UK police data vulnerable to ‘compromise’ by US government and foreign actors
Exclusive: Official UK security assessment found Microsoft cloud platform storing files was at potential risk from hostile hackersVast troves of highly sensitive police data are lying on Microsoft cloud platforms which an official UK security assessment deemed to be vulnerable to “compromise” by foreign actors and the US government, a Guardian investigation can reveal.The files…
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Secure enterprise sharing with access reviews for Microsoft 365
Microsoft 365 makes sharing files easy, but access can remain long after its original purpose has ended, leaving organizations with little visibility into who can still reach sensitive data. tenfold Software explains how centralized access governance and owner-driven reviews can help identify and remove unnecessary access. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/secure-enterprise-sharing-with-access-reviews-for-microsoft-365/
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Microsoft Teams will let admins block custom file extensions
Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company’s security requirements. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/microsoft-teams-will-let-admins-block-custom-file-extensions/
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Microsoft Teams will let admins block custom file extensions
Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company’s security requirements. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/microsoft-teams-will-let-admins-block-custom-file-extensions/
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Microsoft Teams will let admins block custom file extensions
Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company’s security requirements. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/microsoft-teams-will-let-admins-block-custom-file-extensions/
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Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts
Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/microsoft-fixes-bug-behind-defender-antivirus-is-turned-off-alerts/
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Microsoft fixes broken copy and paste for Excel 2016 users
Tags: microsoftMicrosoft has fixed a known issue that causes copy-and-paste failures for some Excel users after installing the September 2026 KB5002914 security update. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-fixes-broken-copy-and-paste-for-excel-2016-users/
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12 Best Multi-Cloud Security Platforms Compared (2026): Features Pricing
Quick Answer: Multi-cloud doesn’t just triple your attack surface it triples your billing surface, and vendors price the same workload differently per provider. Wiz and Prisma Cloud sell one-contract parity; Microsoft publishes rates that now extend to AWS/GCP connectors; Fortinet and Check Point bundle into fabric ELAs; Aviatrix bills the network layer everyone else ignores.…
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Microsoft showcases AI-powered cyber defence tools at GISEC
The company highlights new security capabilities as businesses across the UAE look to secure growing artificial intelligence deployments First seen on computerweekly.com Jump to article: www.computerweekly.com/news/366650430/Microsoft-showcases-AI-powered-cyber-defence-tools-at-GISEC
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Windows 11 24H2 Home and Pro reach end of support in October
Microsoft reminded customers this week that devices running Windows 11 24H2 Home and Pro editions will stop receiving updates next month. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/windows-11-24h2-home-and-pro-reach-end-of-support-in-october/
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12 Best DSPM Tools Compared (2026): Features Pricing
Quick Answer: DSPM has the scariest pricing curve in security bills track data volume, and data only grows. Microsoft Purview publishes pay-as-you-go rates (the anchor); Cyera leads the independents; BigID and Varonis bring privacy and on-prem lineage; CrowdStrike (Flow) and Tenable (Eureka-lineage) mark the consolidation wave. Negotiate volume caps before your data does the negotiating.…