Hardening and patching Linux servers and cloud infrastructure.
CVE-2026-123158 lets attackers log in to sshd on Alpine and other musl systems without PAM. A tested 5-minute check, the fixed package versions and the log line to look for.
A tested secure Nginx configuration for Ubuntu 24.04: TLS 1.2/1.3, security headers, rate limits and dotfile blocking, with real output.
A tested SSH hardening checklist for Ubuntu 24.04: one drop-in sshd file, modern crypto, safe rollout steps and a printable table.
Set up automated server monitoring with Netdata, Prometheus, Alertmanager and Uptime Kuma: tested alert rules, CERT-In log retention and AI limits.
Build a self-healing Linux server with systemd Restart and WatchdogSec, a tested bash remediation script with cooldown, timers and webhook alerts.
An AhsayCBS vulnerability chain is being exploited on MSP backup servers. Hotfix builds, version checks, IOCs and steps to protect your backups.
Stolen ConnectWise app credential was used for Microsoft 365 tenant takeover attempts. How M365 admins and MSPs can check apps, logs and mailboxes.
A BeyondTrust vulnerability (CVE-2026-102764) in Remote Support was exploited as a zero-day since August. Who is affected, how to patch, and what to check.
Atlassian vulnerability CVE-2026-21589 lets attackers read files from Jira, Confluence and Bitbucket. Fixed versions, mitigations and log checks.
Rank Math PRO backdoor in 3.0.123 (15-16 Oct 2026): who is affected, WP-CLI checks for the published IOCs, and the clean-up order before 3.0.124.
