authentication

Winsage
April 22, 2026
Microsoft is set to expire the Secure Boot authentication certificates that protect Windows PCs from threats upon each restart, with this initiative beginning in April 2023. The update will install new certificates and confirm if user action is necessary, with all devices expected to have the update by the end of April 2026. Users can check their Secure Boot status in Windows Security, where a badge system indicates the status. If the certificates expire, users may be at risk of boot-level malware. Microsoft is enhancing visibility of Secure Boot certificate status to aid user awareness. Users should check their PC by the end of the month to ensure it is updated.
Winsage
April 22, 2026
Microsoft is updating the Secure Boot certificates for Windows PCs, which have been in place since 2011. This update will begin with the April security patch rollout and is expected to be fully deployed across PCs by the end of April 2026. Users can check the status of the Secure Boot update by navigating to Windows Security > Device security > Secure Boot, where a color-coded badge will indicate the current status. The update will install new certificates and confirm if user action is necessary. If the badge is red, immediate attention is required. Microsoft is enhancing the visibility of the Secure Boot certificate status within Windows Security to aid users in verifying the update. The certificates will not expire for several more weeks, so users should check their systems by the end of the month.
Tech Optimizer
April 21, 2026
Gen Digital Inc operates a consumer-focused cybersecurity model centered on subscription-based protection services, including antivirus, VPNs, and identity theft protection. The company generates predictable revenue through auto-renewals, with over 90% of customers renewing annually. Its business model scales with internet penetration and focuses on individual users rather than enterprise contracts. Gen Digital emphasizes organic growth through product innovation and geographic expansion, with key growth drivers including the increase of connected devices and cloud-based delivery. The product portfolio features tiered subscription plans, catering to diverse consumer needs, and the company maintains a competitive position through superior detection rates and customer support. Gen Digital's primary markets are North America and Europe, with emerging opportunities in Latin America and Asia. Analysts view the subscription model favorably for its resilience and cash flow generation, while risks include competition from free tools and regulatory changes. Upcoming earnings will provide insights into subscriber trends and pricing power.
Tech Optimizer
April 21, 2026
Microsoft states that the built-in security features of Windows 11 are adequate for most users, suggesting that third-party antivirus solutions may not be necessary. However, there are scenarios where third-party antivirus software can be beneficial, especially due to recent vulnerabilities in Defender. Independent testing organizations have rated Defender highly, with AV-Test placing it among the top antivirus solutions and AV-Comparatives awarding it the Advanced+ badge. Microsoft emphasizes that Defender runs continuously as part of Windows and receives updates through Windows Update, ensuring automatic protection. The company advises that additional security software may be useful for users managing multiple devices or seeking specific features like identity monitoring or parental controls. Safe computing habits are also recommended to enhance security.
Winsage
April 21, 2026
Microsoft has released an out-of-band update to fix a restart loop issue affecting certain Windows Server devices after the April 2026 update. The problem arose after installing the April 2026 Windows security update (KB5082063), causing domain controllers in multi-domain environments using Privileged Access Management (PAM) to experience LSASS crashes during startup, leading to repeated restarts and potential domain outages. The update targets Windows Server versions 2016 through 2025 and includes hotpatches for failed installations. Only Windows Servers were affected, while some enterprise devices may need to enter their BitLocker recovery key after the first restart post-installation. Microsoft has issued similar updates recently, raising concerns about the frequency of these occurrences.
Winsage
April 20, 2026
Microsoft has released emergency updates for various versions of Windows Server due to issues arising from the April 2026 Patch Tuesday security updates. A significant problem was a reboot loop affecting domain controllers caused by crashes of the Local Security Authority Subsystem Service (LSASS), which disrupted authentication services. This issue was especially problematic during the setup of new domain controllers. Additionally, some Windows Server 2025 systems encountered difficulties in installing the security update KB5082063. The out-of-band update (KB5091157) for Windows Server 2025 addresses both the installation failure and the domain controller restart issue. Other updates targeting the domain controller restart problem were released for additional supported Windows Server versions. Microsoft has introduced an out-of-band update for seven versions, including KB5091157 for Windows Server 2025 and KB5091571 for Windows Server, version 23H2. Furthermore, some Windows Server 2025 devices may boot into BitLocker recovery mode after the update, requiring users to enter a BitLocker recovery key.
Winsage
April 20, 2026
Microsoft has confirmed that some administrators are experiencing difficulties installing the KB5082063 security update on Windows Server 2025. This month's Patch Tuesday updates have caused certain Windows servers, especially those with domain controller roles, to enter a restart loop due to failures in the Local Security Authority Subsystem Service (LSASS). Microsoft has released emergency out-of-band updates, including KB5091157 for Windows Server 2025, to address both the installation failure and the restart issues. Additionally, some Windows Server 2025 devices may boot into BitLocker recovery mode after installing the KB5082063 update. A bug affecting Windows Server 2019 and Windows Server 2022 that caused unexpected upgrades to Windows Server 2025 has also been resolved. Microsoft has issued various emergency updates throughout the year to address other issues, including a Bluetooth device visibility bug and vulnerabilities in the Routing and Remote Access Service (RRAS).
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