The Cybersecurity Blog

A 30-day replacement plan for a firewall past its date: five phases with quantitative gates, rollback triggers, and what to do when 30 days is not enough.

Every firewall, VPN gateway and secure-access product going end of sale or end of support through 2027, across twelve vendors, with the KEV overlay.

Every vendor has a partner page; none model your P&L. Multi-tenancy checklist, the 16-month cash valley, the ticket load shift and NIS2 supply-chain terms.

The MPLS exit nobody prices: termination liability per contract type, the parallel-run overlap, per-site transition cost, and a break-even model you can reuse.

Every SonicWall TZ, NSA and SMA end-of-support date, the SonicOS branch ceiling per generation, what stops after the date, and the exploitation record.

You are audited on your evidence, not the directive. Per Article 21 measure: what a Belgian assessor inspects and which export or document satisfies it.

The 40F base model has no End of Order date. The real decision is the successor: the 50G keeps the same 2GB limit, the 70G does not. With the sizing rule.

End of Sale stops purchases, Last Day of Support stops the tenant. Every Umbrella package date, what breaks at each milestone, and why expiry fails open.

NAC controls the switch port, ZTNA controls the application. Eight scenarios, what each one genuinely cannot see, and what running both really costs.