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4sysops
4sysops.com > archives > hardening-windows-server-essential-tools-and-techniques-for-administrators

Hardening Windows Server: Essential tools and techniques for administrators – 4sysops

1+ day, 7+ hour ago   (28+ words) Microsoft has released a new, comprehensive hardening guide for Windows Server. As AI-driven attacks grow more dangerous by the hour, it is crucial to take a mo...

4sysops
4sysops.com > archives > hotel-wi-fi-dns-poisoning-can-bypass-mfa-for-microsoft-365-travelers

Hotel Wi-Fi DNS poisoning can bypass MFA for Microsoft 365 travelers – 4sysops

1+ day, 10+ hour ago   (22+ words) Attackers are compromising hotel and conference-center Wi-Fi gateways to redirect every connected guest toward counterfeit Microsoft 365 sign-in infrastructure....

4sysops
4sysops.com > archives > bluenoroff-keeps-upgrading-zoom-phishing-kit-with-wallet-profiling-and-deepfakes

BlueNoroff keeps upgrading Zoom phishing kit with wallet profiling and deepfakes – 4sysops

1+ day, 10+ hour ago   (25+ words) BlueNoroff is actively refining its fake Zoom and Microsoft Teams infrastructure, with five phishing-kit versions identified between May 31 and July 14, 2026, a...

4sysops
4sysops.com > archives > rufus-alternative-ventoy-tightens-secure-boot-support-for-windows-11-installers

Rufus alternative Ventoy tightens Secure Boot support for Windows 11 installers – 4sysops

1+ day, 10+ hour ago   (26+ words) Ventoy 1.1.17 adds another round of Secure Boot improvements as Windows 10 and 11 systems transition to updated Microsoft signing keys. The release notes descri...

4sysops
4sysops.com > archives > notepad-plugin-abuse-turns-a-trusted-editor-into-a-stealth-malware-loader

Notepad++ plugin abuse turns a trusted editor into a stealth malware loader – 4sysops

1+ day, 10+ hour ago   (27+ words) CERT-UA has warned that the UAC-0099 threat cluster is using Notepad++’s normal plugin-loading behavior to hide an espionage campaign against organizations in U...

4sysops
4sysops.com > archives > certighost-vulnerability-allows-domain-controller-impersonation-via-ad-cs

Certighost vulnerability allows domain controller impersonation via AD CS – 4sysops

1+ day, 12+ hour ago   (24+ words) The Certighost vulnerability, tracked as CVE-2026-54121, allows low-privileged users to impersonate a Domain Controller by exploiting a flaw in Active Directory...

4sysops
4sysops.com > archives > hp-says-30-of-pcs-are-still-on-windows-10-as-microsoft-extends-support

HP says 30% of PCs are still on Windows 10 as Microsoft extends support – 4sysops

1+ day, 12+ hour ago   (30+ words) HP says roughly 30% of its installed PC base is still running Windows 10, showing that many customers have not yet moved to Windows 11. That holdout rate is sig...

4sysops
4sysops.com > archives > modernizing-sap-identity-management-with-microsoft-entra

Modernizing SAP identity management with Microsoft Entra – 4sysops

1+ day, 19+ hour ago   (22+ words) Microsoft Entra now serves as a centralized identity control plane that integrates directly with SAP applications to streamline lifecycle management. By connect...

4sysops
4sysops.com > archives > global-microsoft-365-outage-disrupts-teams-and-collaboration-services

Global Microsoft 365 outage disrupts Teams and collaboration services – 4sysops

1+ day, 19+ hour ago   (25+ words) A widespread service disruption on July 23, 2026, left users globally unable to join Microsoft Teams meetings or maintain active calls. The outage extended beyo...

4sysops
4sysops.com > archives > github-overhauls-bug-bounty-program-with-fixed-payouts-and-vip-tier

GitHub overhauls bug bounty program with fixed payouts and VIP tier – 4sysops

1+ day, 19+ hour ago   (24+ words) GitHub is restructuring its bug bounty program effective July 27, 2026, to prioritize report quality and reduce administrative overhead. The public program is s...