Perimeter protocols: start with a low‑visibility honeypot layer to bait reconnaissance, then a dynamic IDS that shifts signatures every hour to avoid pattern recognition. Next, a micro‑segment firewall that inspects packet headers against a constantly updated rule set—any anomaly triggers a temporary isolation zone. Finally, a fail‑safe that cuts power to the core network and logs all access attempts to a secure, immutable ledger. Keep everything automated but double‑check for false positives; human oversight only for policy changes.