What is one business risk introduced by the use of legacy firewalls?

Legacy firewalls introduce performance risk because they were designed around centralized perimeter enforcement and hardware capacity limits. Cloud and remote-work traffic creates encrypted, high-volume flows that can overwhelm appliance-based inspection and force inefficient backhauling. Option A (Performance issues) is correct because performance degradation is a real business risk of legacy firewall architecture.

Why the other options are incorrect:

B. Reduced management: Reduced management would be an operational benefit, not a business risk introduced by legacy firewalls.

C. Low costs: Low cost is a benefit claim, while legacy firewall estates usually add hardware, scaling, and maintenance cost.

D. Low licensing support: Licensing support is a commercial concern, not the main architectural risk tested in the legacy-firewall question.