Browse incidents, troubleshooting guides, AI diagnostics, verified fixes and community discussions related to Security.
## Environment Enterprise Windows domain (AD) with Windows Server 2016 DCs. DCs underwent TLS certificate rotation for LDAPS and LDAPS termination on load balancer changed certificates. Management automation uses PowerShell Remoting (WinRM) with Neg...
## Environment Ubuntu 22.04 laptops running Firefox 116 and Chrome 117. System udev rules were recently modified centrally (config management) to change ownership/permissions for a set of HID devices. FIDO2 keys (YubiKey, Solo) present as /dev/hidra...
## Environment MacBook Pro 2019 running macOS 12.6.5, Apple Mail 14.0, corporate VPN (IKEv2) provided by company ASA gateway; split-DNS pushes internal DNS suffix and internal resolver 10.8.0.2 over tunnel; normal Wi‑Fi (home/coffee) and cellular te...
## Environment Ubuntu 22.04 desktop upgraded kernel recently; camera is a UVC webcam exposed as /dev/video0; application installed as a snap (example: snap 'cheese' or a snap-packaged videoconferencing client). ## Symptoms Snap application shows a...
## Environment Small office: Ubuntu 20.04 Postfix mail server (192.168.10.10) behind an ISP‑supplied modem in passthrough to a pfSense 2.5 router; outbound SMTP uses port 587 with STARTTLS to multiple external MX hosts. ## Symptoms Outgoing mail t...
## Environment MacBook Pro running macOS 13.5 (Ventura), Microsoft Teams (Apple-silicon native) version 1.6.x installed from company package; user account is standard (non-admin). System Settings > Privacy & Security shows 'Microphone' access grante...
## Environment MacBook Pro 2021 (M1 Pro), macOS Ventura 13.6 (installed latest minor security update), Microsoft Teams desktop app (Electron-based) v1.5x installed from Microsoft website, Voice Memos and QuickTime record microphone successfully, Tea...
## Environment Express API using 30-day stateless JWT access tokens. ## What happens Changing the password stops new logins but an existing browser remains authenticated. ## What I have tried Cleared cookies on the device that performed the rese...
## Environment Express API behind Cloudflare with JWT cookies. ## What happens A user occasionally receives profile JSON belonging to the previous requester. ## What I have tried Purged the cache and changed the frontend request cache option. I...
## Environment Pixel phone on Android 15 connected to a mesh Wi-Fi network. ## What happens Push notifications arrive together only after unlocking the screen or switching to mobile data. ## What I have tried Disabled battery optimization for af...