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			220 строки
		
	
	
		
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			220 строки
		
	
	
		
			12 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| # Portfolio Projects
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| 
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| ## Public Notice
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| This portfolio is a public document and includes no sensitive or classified information. All the contents are suitable for general audiences and comply with confidentiality agreements.
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| 
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| ## Overview of Public Projects
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| 1. [Enterprise Network Security Audit](#project-1-enterprise-network-security-audit)
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| 2. [Small Business Security Assessment & Enhancement](#project-2-small-business-security-assessment--enhancement)
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| 3. [Secure Satellite Communication Protocol Design](#project-3-secure-satellite-communication-protocol-design)
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| 4. [UAV Cybersecurity Framework Implementation](#project-4-uav-cybersecurity-framework-implementation)
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| 5. [AI-Driven Network Anomaly Detection](#project-5-ai-driven-network-anomaly-detection)
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| 6. [Secure SDR Implementation for Amateur Ground Stations](#project-6-secure-sdr-implementation-for-amateur-ground-stations)
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| 7. [Lunar Analog Habitat Cybersecurity Architecture](#project-7-lunar-analog-habitat-cybersecurity-architecture)
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| 8. [Family Office Cybersecurity Framework](#project-8-family-office-cybersecurity-framework)
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| 
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| ---
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| 
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| ## Project 1: Enterprise Network Security Audit
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| 
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| ### Overview
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| Conducted a comprehensive security audit for a large corporation, evaluating network architecture, firewall configurations, intrusion detection/prevention systems (IDS/IPS), and overall vulnerability management posture.
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| 
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| ### Objectives
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| - Analyzed network topology, segmentation, and data flow patterns for security risks.
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| - Performed vulnerability scanning and configuration reviews of key network infrastructure.
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| - Assessed firewall rule effectiveness and IDS/IPS signature relevance.
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| - Recommended prioritized remediation actions and strategic security enhancements.
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| - Evaluated system hardening practices, including Linux file permissions and database access controls.
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| 
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| ### Tools & Technologies
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| - Network Vulnerability Scanner (Nessus)
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| - Packet Analyzer (Wireshark)
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| - Firewall Platforms (Cisco ASA, Juniper SRX)
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| - Linux/*nix command-line utilities
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| - SQL database query tools (for configuration review)
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| 
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| ### Outcome
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| - Identified numerous critical and high-severity vulnerabilities, providing detailed remediation guidance.
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| - Delivered actionable insights leading to measurable improvements in the organization's network security posture.
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| - Enhanced alignment with compliance requirements such as GDPR and HIPAA through targeted recommendations.
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| 
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| ---
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| 
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| ## Project 2: Small Business Security Assessment & Enhancement
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| 
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| ### Overview
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| Executed a comprehensive security assessment and implemented foundational security improvements for a small business, focusing on identifying critical vulnerabilities and establishing robust defensive measures.
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| 
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| ### Objectives
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| - Conducted external and internal penetration testing to identify exploitable vulnerabilities.
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| - Analyzed existing network design, security policies, and access control mechanisms.
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| - Developed and implemented baseline security configurations for workstations and servers.
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| - Established incident response guidelines and provided staff awareness training.
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| 
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| ### Tools & Technologies
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| - Penetration Testing Frameworks (Metasploit, Burp Suite)
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| - Network Firewalls (pfSense implementation)
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| - Intrusion Detection System (Snort configuration)
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| - Incident Response Ticketing System (setup and configuration)
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| 
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| ### Outcome
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| - Significantly strengthened defenses against common cyber threats like phishing and ransomware.
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| - Reduced the potential attack surface through network segmentation and system hardening.
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| - Improved the company's capability to detect and respond effectively to security incidents.
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| - Fostered a more security-conscious culture within the organization.
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| 
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| ---
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| 
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| ## Project 3: Secure Satellite Communication Protocol Design
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| 
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| ### Overview
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| Led the design and analysis of secure communication protocols for satellite command, telemetry, and payload data transmission, emphasizing confidentiality, integrity, and authentication for space-to-Earth links.
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| 
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| ### Objectives
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| - Defined security requirements based on mission profile and threat modeling specific to space assets.
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| - Designed cryptographic protocols incorporating AES-GCM and SHA-3, suitable for satellite operational constraints.
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| - Implemented and validated secure data transmission mechanisms ensuring data integrity via authenticated encryption.
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| - Analyzed protocol resilience against eavesdropping, replay attacks, and jamming scenarios.
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| 
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| ### Tools & Technologies
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| - Cryptographic Standards (AES-GCM, SHA-3, CCSDS Security Recommendations)
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| - Protocol Simulation Environment (NS-3)
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| - Secure Programming Libraries (OpenSSL)
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| - Formal Verification Methods (preliminary analysis)
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| 
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| ### Outcome
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| - Developed robust protocol specifications enhancing confidentiality and integrity for critical satellite communications.
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| - Validated protocol resilience against modeled space communication threats through simulation.
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| - Contributed to establishing secure and reliable communication channels, increasing mission assurance.
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| 
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| ---
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| 
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| ## Project 4: UAV Cybersecurity Framework Implementation
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| 
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| ### Overview
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| Developed and implemented a security framework for Unmanned Aerial Vehicles (UAVs), protecting command and control (C2) links, onboard data, and resisting potential cyber-attacks like jamming or hijacking.
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| 
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| ### Objectives
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| - Secured the C2 link between UAVs and ground control stations using authenticated encryption (DTLS).
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| - Implemented data-at-rest (LUKS) and data-in-transit (TLS) protection for collected sensor data.
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| - Deployed lightweight intrusion detection agents tailored for UAV operational constraints.
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| - Conducted penetration testing against the implemented framework using RF analysis tools.
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| 
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| ### Tools & Technologies
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| - Wireless Security Protocols (DTLS, WPA3-Enterprise)
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| - Lightweight Cryptography Libraries (mbed TLS)
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| - Embedded Linux Security Tools (iptables, auditd)
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| - SDR Platforms (HackRF for RF testing)
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| - Custom Intrusion Detection Agents
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| 
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| ### Outcome
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| - Deployed a security framework significantly reducing the risk of unauthorized C2 interference and data interception.
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| - Ensured integrity and confidentiality of sensitive payload data during flight and post-processing.
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| - Enhanced overall operational resilience and safety for UAV missions through validated security measures.
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| 
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| ---
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| 
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| ## Project 5: AI-Driven Network Anomaly Detection
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| 
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| ### Overview
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| Designed and implemented an AI-driven anomaly detection system leveraging machine learning to identify potentially malicious network activities that evade traditional signature-based detection methods.
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| 
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| ### Objectives
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| - Curated and pre-processed NetFlow data and firewall logs for model training.
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| - Developed and trained Isolation Forest and Autoencoder models to establish baseline network behavior.
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| - Integrated the trained models with the ELK Stack for real-time log analysis.
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| - Implemented alerting mechanisms within Kibana for detected anomalies, prioritized by deviation scores.
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| 
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| ### Tools & Technologies
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| - Machine Learning Libraries (Scikit-learn, Keras)
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| - Data Processing Tools (Pandas, Logstash)
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| - Log Management & Analytics (ELK Stack: Elasticsearch, Logstash, Kibana)
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| - Network Data Sources (NetFlow, Firewall Logs)
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| 
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| ### Outcome
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| - Developed a system capable of detecting novel network anomalies potentially indicative of zero-day threats.
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| - Reduced mean-time-to-detect for specific classes of anomalous behavior compared to manual analysis.
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| - Provided security analysts with prioritized, actionable alerts, improving response efficiency.
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| - Enhanced proactive threat hunting capabilities by highlighting unusual network patterns.
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| 
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| ---
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| 
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| ## Project 6: Secure SDR Implementation for Amateur Ground Stations
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| 
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| ### Overview
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| Led a project focused on securing ground-based amateur antennas for space communication, using Software-Defined Radio (SDR) techniques to ensure the integrity and authenticity of space-to-ground transmissions from amateur satellites.
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| 
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| ### Objectives
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| - Implemented secure demodulation and decoding pipelines within GNU Radio.
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| - Analyzed and mitigated risks associated with RF interference and spoofing targeting amateur SDR setups.
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| - Developed methods using digital signatures (where feasible) for verifying received satellite transmissions.
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| - Documented and shared secure SDR processing workflows with the amateur radio community.
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| 
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| ### Tools & Technologies
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| - SDR Software (GNU Radio Companion, GQRX)
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| - SDR Hardware (RTL-SDR, USRP)
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| - Signal Processing Libraries (GNU Radio DSP blocks, SciPy)
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| - Authentication Techniques (GPG for signature verification)
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| - RF Analysis Tools (Spectrum Analyzers)
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| 
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| ### Outcome
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| - Created secure SDR processing workflows enhancing data integrity for amateur satellite communications.
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| - Increased ground station resilience against common RF spoofing and interference techniques.
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| - Contributed practical security guidelines and reusable GNU Radio blocks to the open-source space community.
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| 
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| ---
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| 
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| ## Project 7: Lunar Analog Habitat Cybersecurity Architecture
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| 
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| ### Overview
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| Designed and implemented cybersecurity protocols for a Lunar Analog Habitat simulation, focusing on safeguarding critical life support, communication, and research systems in an isolated, high-latency environment.
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| 
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| ### Objectives
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| - Developed a Zero Trust security model adapted for the habitat's segmented network.
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| - Implemented robust multi-factor authentication (MFA) and end-to-end encryption (TLS 1.3) for all internal and external communications.
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| - Deployed intrusion detection (Zeek sensors) and continuous monitoring systems integrated with a central SIEM.
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| - Secured critical environmental control systems using network isolation and protocol-aware monitoring.
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| 
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| ### Tools & Technologies
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| - Zero Trust Principles Implementation (Micro-segmentation via VLANs/Firewalls, Identity Management)
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| - Strong Encryption Standards (TLS 1.3, AES-256)
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| - Network Intrusion Detection System (Zeek)
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| - SIEM Platform (ELK Stack)
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| - Secure Remote Access (IPSec VPN)
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| 
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| ### Outcome
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| - Established robust protection for simulated critical habitat systems against potential cyber threats.
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| - Demonstrated resilient secure communication capabilities despite simulated high-latency links.
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| - Contributed a practical security architecture model applicable to future secure space exploration and habitation designs.
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| 
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| ---
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| 
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| ## Project 8: Family Office Cybersecurity Framework
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| 
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| ### Overview
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| Developed a tailored cybersecurity framework for a Family Office, addressing the unique financial, legal, and privacy concerns of high-net-worth individuals and families against targeted cyber threats.
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| 
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| ### Objectives
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| - Designed robust protection against sophisticated phishing, ransomware, and identity theft attempts.
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| - Implemented secure communication channels (Signal, ProtonMail) and encrypted data storage (VeraCrypt).
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| - Deployed advanced endpoint protection and secure network configurations for home and office environments.
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| - Created and delivered personalized cybersecurity awareness training for family members and staff.
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| 
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| ### Tools & Technologies
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| - Secure Communication Platforms (Signal, ProtonMail)
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| - Full Disk & File Encryption (VeraCrypt, BitLocker)
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| - Advanced Endpoint Detection & Response (EDR) Solution
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| - Enterprise-Grade Firewall/VPN Appliance
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| - Password Managers & Hardware Security Keys (MFA)
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| - Custom Phishing Simulation & Training Platform
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| 
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| ### Outcome
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| - Established comprehensive protection reducing exposure for sensitive information and financial assets.
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| - Improved confidence in secure Family Office operations through implemented technical controls and training.
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| - Delivered tailored solutions addressing the unique cybersecurity challenges and risk profile faced by high-net-worth families.
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| 
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| ---
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| 
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| For sensitive matters, inquiries, or professional collaborations, please reach out via email at [space.stranger698@8shield.net](mailto:space.stranger698@8shield.net). For quicker responses, you can also connect with me on my [LinkedIn Profile](https://www.linkedin.com/in/sylvesterkaczmarek/).
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