Negligence No Longer an Option in Critical Infrastructure Cybersecurity

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The ransomware attack on Nova Scotia Power highlights systemic negligence in protecting critical infrastructure. While electricity delivery wasn’t disrupted, the breach exposed deeply personal customer data, including Social Insurance Numbers and banking details—an inexcusable failure. Detected in March 2025 and confirmed by May, the incident reveals a lack of urgency and preparedness.

Despite refusing to pay the ransom, the company failed in its duty to safeguard sensitive data. This reflects broader industry complacency, where cybersecurity is treated as optional. Regulators must enforce stringent cybersecurity standards—inaction is dangerous and life-threatening.

You Should Know: Critical Cybersecurity Practices for Infrastructure Protection

1. Network Segmentation & Isolation

Prevent lateral movement by attackers using VLANs and firewalls.

Linux Command:

sudo iptables -A FORWARD -i eth0 -o eth1 -j DROP  Blocks traffic between interfaces

Windows Command (PowerShell):

New-NetFirewallRule -DisplayName "Block Cross-Subnet" -Direction Outbound -LocalPort Any -RemotePort Any -Action Block

2. DNS Security Enhancements

Protect against DNS hijacking and cache poisoning.

Linux (DNSSEC Validation):

sudo apt install unbound 
sudo unbound-control-setup  Enables DNSSEC

Windows (DNS Cache Locking):

Set-DnsServerCache -LockingPercent 90  Prevents cache overwrites

3. Ransomware Mitigation

Use immutable backups and disable unauthorized executables.

Linux (Immutable Backup):

sudo chattr +i /backups/critical_data.tar.gz  Makes file immutable

Windows (Disable RDP for External Access):

Set-NetFirewallRule -DisplayGroup "Remote Desktop" -Enabled False

4. Logging & Threat Hunting

Monitor for unusual activity.

Linux (Auditd Rules):

sudo auditctl -a always,exit -F arch=b64 -S execve  Logs all executed commands

Windows (SIEM Query for Ransomware):

Get-WinEvent -FilterHashtable @{LogName='Security'; ID=4688} | Where-Object {$_.Message -like "ransom"}

5. Patch Management

Automate updates for critical systems.

Linux (Automated Patching):

sudo apt install unattended-upgrades 
sudo dpkg-reconfigure unattended-upgrades

Windows (WSUS Patch Check):

Get-WsusServer | Get-WsusUpdate -Approval Unapproved -Status Needed

What Undercode Say

The Nova Scotia Power breach underscores the need for proactive defense, not reactive fixes. Critical infrastructure must adopt:
– Zero Trust Architecture (micro-segmentation, MFA)
– Automated Threat Detection (YARA rules, SIEM alerts)
– Immutable Backups (WORM storage, air-gapped systems)
– Strict Access Controls (JIT privileges, PAM solutions)

Expected Output: A hardened infrastructure resistant to ransomware, data exfiltration, and DNS-based attacks.

Prediction

By 2026, regulatory penalties for critical infrastructure breaches will triple, forcing organizations to adopt military-grade cyber defenses or face shutdowns. AI-driven threat hunting will become mandatory for energy, healthcare, and financial sectors.

Relevant URL:

IT/Security Reporter URL:

Reported By: Andy Jenkinson – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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