Rising Tides: Bryson Bort On Cyber Entrepreneurship And The Needed Focus On Critical Infrastructure

Bryson Bort, CEO and Founder of SCYTHE, discusses the importance of cybersecurity in protecting critical infrastructure. His insights highlight the need for awareness and proactive defense mechanisms in industrial control systems (ICS) and operational technology (OT).

Read the full interview here:

https://www.securityweek.com/rising-tides-bryson-bort-on-cyber-entrepreneurship-and-the-needed-focus-on-critical-infrastructure/

You Should Know: Critical Infrastructure Cybersecurity Practices

Securing critical infrastructure requires specialized knowledge in ICS/OT security. Below are key commands, tools, and steps to enhance security in these environments.

1. Network Enumeration & Vulnerability Scanning

Nmap (Network Mapper) – Scan ICS devices:

nmap -sV --script vulners -p 1-1024 <target_IP>

Metasploit Framework – Check for ICS exploits:
```
msfconsole
search type:exploit scada
```

2. ICS Protocol Analysis

Wireshark – Filter Modbus/TCP traffic:
```
tcp.port == 502
```
PLCScan – Detect exposed PLCs:
```
python plcscan.py -i <target_IP>
```

3. Hardening Industrial Systems

Disable unnecessary services in Windows-based HMIs:

Stop-Service -Name "WinRM" 
Set-Service -Name "WinRM" -StartupType Disabled

Linux Firewall Rules for ICS Networks:

sudo iptables -A INPUT -p tcp --dport 502 -j DROP  Block Modbus by default 
sudo iptables -A INPUT -s 192.168.1.100 -p tcp --dport 22 -j ACCEPT  Allow SSH from trusted IP

4. Threat Detection in OT Environments

Snort IDS Rule for SCADA Exploits:

alert tcp any any -> any 502 (msg:"Modbus Unauthorized Access"; content:"|00 01|"; sid:1000001;)

YARA Rule for ICS Malware:

rule Stuxnet_Indicator { 
strings: $a = "Stuxnet" 
condition: $a 
}

What Undercode Say

Critical infrastructure security demands a blend of IT and OT expertise. Key takeaways:
– Monitor legacy protocols (Modbus, DNP3) for anomalies.
– Segment OT networks from corporate IT to limit attack surfaces.
– Use ICS-aware tools like GRASSMARLIN for asset discovery.
– Practice incident response with ICS-specific scenarios.

Expected Output: A hardened ICS environment with minimized exposure to cyber threats.

Relevant URLs:

(End of article)

References:

Reported By: Brysonbort My – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

Join Our Cyber World:

💬 Whatsapp | 💬 Telegram

Listen to this Post