Security & OT Security
Comprehensive cybersecurity and operational technology security solutions
Get StartedSecurity & OT Security | Protect IT Infrastructure & Industrial Control Systems
Secure your digital and operational assets—not just compliance checkboxes
ARIS Vietnam helps you build robust security posture across IT and OT environments. We don't just run vulnerability scans—we implement defense-in-depth strategies, establish security monitoring, ensure compliance frameworks (ISO 27001, NIST, IEC 62443), and provide incident response capabilities. Our approach covers the full security lifecycle: from risk assessment and architecture design to continuous monitoring, threat detection, and incident management.
Common cybersecurity & OT security challenges
- •Legacy OT systems with no security visibility or patching strategy
- •IT and OT security managed in silos—no unified view
- •Lack of security monitoring and incident response capabilities
- •Compliance requirements (ISO 27001, NIST, IEC 62443) not met
- •Insider threats and inadequate access controls
- •No security awareness training—phishing and social engineering risks
- •Ransomware and supply chain attacks not adequately addressed
Why security projects fail
- ⚠Security treated as one-time project, not continuous process
- ⚠No baseline risk assessment or asset inventory
- ⚠Compliance-focused only—not threat-focused
- ⚠No security incident playbooks or tabletop exercises
- ⚠Security tools deployed without proper tuning or integration
Security & OT Security Delivery Process
Security Assessment & Gap Analysis
2-3 weeksConduct comprehensive security assessment covering IT and OT environments. Identify vulnerabilities, security gaps, compliance deficiencies, and prioritize risks based on business impact.
Security Architecture Design
3-4 weeksDesign security architecture with defense-in-depth strategy: network segmentation, access controls, security zones (IT/OT), monitoring strategy, and compliance framework alignment.
Security Controls Implementation
8-12 weeksDeploy security controls: firewalls, IDS/IPS, endpoint protection, SIEM/SOC, OT security monitoring, vulnerability management, and access management (IAM, MFA).
Security Monitoring & Incident Response Setup
4-6 weeksEstablish security operations: SOC setup (in-house or managed), SIEM integration, threat intelligence feeds, incident response playbooks, and tabletop exercises.
Compliance & Audit Readiness
4-8 weeksImplement compliance frameworks (ISO 27001, NIST CSF, IEC 62443), document security policies and procedures, conduct internal audits, and prepare for external certification.
Continuous Improvement & Threat Management
OngoingContinuous security monitoring, vulnerability management, patch management, security awareness training, threat hunting, and regular penetration testing to maintain strong security posture.
Scope of Services
・Security assessments and gap analysis (IT & OT) ・Penetration testing and vulnerability assessments ・OT/ICS security and SCADA protection ・Security architecture design and implementation ・SOC setup and managed security services ・SIEM/SOAR platform integration ・Incident response and forensics ・Compliance frameworks (ISO 27001, NIST CSF, IEC 62443) ・Security awareness training and phishing simulations ・Threat intelligence and threat hunting ・Identity and access management (IAM, MFA, PAM)
Use Cases
OT/ICS Security for Manufacturing & Utilities
Secure industrial control systems (SCADA, DCS, PLCs) with network segmentation, OT monitoring, and IEC 62443 compliance. Prevent cyber attacks on critical infrastructure and production systems.
Security Operations Center (SOC) Setup
Establish 24/7 security monitoring with SIEM platform, threat detection rules, incident response playbooks, and security analysts. Detect and respond to threats in real-time.
ISO 27001 / NIST Compliance Implementation
Implement information security management system (ISMS) aligned with ISO 27001 or NIST Cybersecurity Framework. Achieve certification and meet regulatory requirements.
Penetration Testing & Red Team Exercises
Conduct ethical hacking and penetration testing to identify security vulnerabilities. Perform red team exercises to test incident response capabilities and security controls.
Ransomware Protection & Incident Response
Implement ransomware defense strategies: backup and recovery, endpoint protection, network segmentation, and incident response plans. Minimize ransomware impact and ensure business continuity.
Why ARIS
Ready to strengthen your security posture?
Let's assess your security risks and build a comprehensive protection strategy.
Request Security AssessmentFrequently Asked Questions
OT (Operational Technology) security protects industrial control systems like SCADA, DCS, and PLCs used in manufacturing, utilities, and critical infrastructure. Unlike IT systems, OT systems control physical processes and equipment. A cyber attack on OT can cause production downtime, equipment damage, or safety incidents. OT security requires specialized knowledge of industrial protocols and operational constraints.
OT security differs in several ways: 1) Availability is the top priority (vs. confidentiality in IT), 2) Legacy systems with limited patching capabilities, 3) Real-time requirements with no tolerance for latency, 4) Proprietary industrial protocols, 5) Long system lifecycles (10-20 years), 6) Safety-critical considerations. Security approaches must account for these operational constraints.
Yes. We can establish in-house SOC with your team or provide managed security services (24/7 monitoring). Our SOC services include: SIEM platform management, threat detection and analysis, incident response, threat intelligence integration, and regular security reports.
We support multiple frameworks: ISO 27001 (Information Security Management), NIST Cybersecurity Framework, IEC 62443 (Industrial Automation and Control Systems Security), PCI DSS (Payment Card Industry), HIPAA (Healthcare), and SOC 2. We help with gap analysis, implementation, documentation, and audit readiness.
We recommend: annual comprehensive penetration testing, quarterly vulnerability assessments, continuous vulnerability scanning, and ad-hoc testing after major infrastructure changes. For critical systems or regulated industries, more frequent testing may be required.
Yes. We provide emergency incident response services: containment, forensic analysis, malware removal, root cause analysis, remediation planning, and recovery support. We can mobilize incident response team within hours. We also help establish incident response plans and conduct tabletop exercises to prepare for future incidents.
Yes. We provide security awareness training covering: phishing and social engineering, password security, secure browsing, mobile device security, data handling, and incident reporting. We also conduct phishing simulations to test and improve user awareness.
For legacy systems that can't be patched or upgraded, we implement compensating controls: network segmentation and firewalls, application whitelisting, removable media controls, OT-specific monitoring, physical security controls, and anomaly detection. We prioritize availability and safety while improving security posture.