Security advisories, patches, and best practices
A critical, unauthenticated remote code execution vulnerability (CVE-2025-22457) exists in Ivanti Connect Secure, Policy Secure, and ZTA Gateways, allowing attackers to trigger a stack-based buffer overflow via crafted HTTP requests.
Your domain is failing SPF authentication, appearing as spf=none in DMARC reports. This means no SPF record was found, causing DMARC to fail and emails to be quarantined or
Outlook or Teams shows error AADSTS50053 with message "Your account is locked" or "Sign-in blocked." Azure AD Smart Lockout has temporarily locked the account after too
A remote code execution (RCE) vulnerability, CVE-2025-23120, exists in Veeam Backup & Replication. Authenticated domain users can execute code on domain-joined backup servers via insecure .NET deserialization. Exploitation is silent
A user's account keeps locking out, but you can't figure out where. This PowerShell command queries domain controller security logs to identify the source of the
Outlook or Teams shows error AADSTS50076 with message "Due to a configuration change made by your administrator, you must use multi-factor authentication." An MFA policy (Security Defaults, per-user
Downloaded something you're not sure about? Instead of risking your real computer, test it in Windows Sandbox - a disposable virtual machine built into Windows. Open it, run
Veeam backup jobs are failing because guest indexing incorrectly identifies a Windows Server 2025 VM as a Linux machine. This is caused by the update KB5044284.
When Windows won't boot and you're in the recovery console, you might need the BitLocker recovery key to unlock the drive. This command retrieves it if
Reveals all WiFi passwords stored on your Windows machine in seconds. Download Get WirelessKeyView from NirSoft: https://www.nirsoft.net/utils/wireless_key.html Extract and run WirelessKeyView.exe -
