David Rizzo
Summary
Dynamic cybersecurity professional combining practical experience in network security and incident response with comprehensive systems knowledge across Linux distributions, Windows environments, and macOS. Skilled at network traffic analysis using Wireshark and Active Directory management. Leverages Python and SQL programming skills with object-oriented programming principles to enhance security operations. Cloud-ready with AWS experience and remote access technology expertise. Currently pursuing a Cybersecurity degree with Digital Forensics focus at Wilmington University, plus Fintech certification (Graduating Fall 2025). Committed to protecting digital assets and maintaining operational resilience in an increasingly connected landscape.
Certifications
- TestOut PC Pro 08/19/2022
- TestOut Linux Pro 10/16/2022
- TestOut Security Pro 12/04/2023
- TestOut Hybrid Server Pro 06/22/2024
Technical Skills
- Programming Languages: Python, SQL, Object Oriented Programming, HTML, CSS
- Cybersecurity and Networking: IAM, Auditing, Network Hardening, Physical Hardening, Cryptography, Security Operations, Vulnerability Assessment
- Operating Systems: Windows, Kali Linux, Red Hat Linux, Ubuntu, CentOS, Mac OS
- Servers: Windows Server, Ubuntu Server, Red Hat Server
- Cloud Technologies: AWS, Azure, Oracle, Google Cloud, Digital Ocean, Linode
- Tools: Wireshark, Splunk, Burp Suite, Magnet Axiom, FTK Imager, Sluethkit Autopsy, Docker
Projects
- Demonstrated comprehensive cybersecurity expertise while completing the National Cyber League (NCL) Individual Game challenges across multiple categories including OSINT, cryptography, password cracking, log analysis, network traffic analysis, and forensics.
- Developed custom scripts for automating complex security tasks such as HMAC verification, binary log parsing, and steganography analysis, while applying methodical problem-solving techniques to extract hidden information, analyze network vulnerabilities, and recover compromised data.
- Tools: ExifTool, John the Ripper, Hashcat, Ophcrack, Wireshark, Aircrack-ng, Binwalk, Autopsy, Nmap, Curl, Dig, GPG (GNU Privacy Guard), Bash, Python, SQL, Steganography
- Led a comprehensive security breach investigation at Nexora Dynamics, identifying a sophisticated attack that began with spear-phishing of a contractor and progressed through credential theft, lateral movement, and data exfiltration across multiple critical systems.
- Conducted detailed root cause analysis that revealed vulnerabilities in email filtering, credential management, endpoint security, and monitoring systems, resulting in targeted recommendations for security posture improvement.
- Tools: Firewall Logs, Router Logs, Threat Intelligence Database, Networking Monitoring, Endpoint Detection and Response
- Performed a forensic investigation on a hard drive image related to the illegal sale, trade, and or purchase of owls.
- Created a forensic report with the findings related to the case.
- Tools: FTK Images, Magnet Axiom Process, Magnet Axiom Examine
- Deployed ELK stack and DVWA in Azure. Setup load balanced DVWA across 3 servers.
- In a separate network, deployed ELK stack to monitor DVWA and set up a jump box to provide ssh access without making servers directly accessible.
- Tools: Azure, Elastic Search, Logstash, Kibana, Load Balancer
Experience
- Meeting the customer needs during a return.
- Helping customers find the right product for their project.
- Ensuring customers have everything they need for their project, i.e., suggestive selling.
- Ensuring merchandise meets Lowe’s quality and safety standards and processing returns efficiently.
- Engaging in safe work processes including the proper disposal of returned items.
- Ensuring merchandise is accurately accounted for, replenished, and prepared for customers.
- Power Equipment Operator
- Providing an excellent checkout experience for customers while supervising, coaching, and supporting the front-end customer service associates and cashiers.
- Supervised approximately 30 people on the front end.
- Working in a fast-paced environment to pull customer orders, provide a fast and friendly checkout experience, and assist customers with finding the right product for their needs.
- Received 4 service star awards for excellent customer service, going above and beyond to ensure customer satisfaction and timely completion of reports, and for always putting best foot forward.
- Mentored 5 fulfillment associates on job duties and day to day operations.
- Cashier of the month February 2021.
- Using Adobe Premiere Pro and Adobe After Effects to edit videos, motion graphics, and on occasion visual effects for weekend services.
- Worked on 10-15 projects a month with the average deadline one week.
- Collaborated on a team of about 6 members.
- Also assisted with the filming of messages, worship, and other videos for the weekends.
- Have volunteered with the church since 2013 and continue to serve.
Education
Senior at Wilmington University pursuing a Bachelor of Science with a concentration in Digital Forensics.
An intensive 24-week long boot camp dedicated to cybersecurity. Skills learned consist of Wireshark, Kali Linux, Metasploit, Burp Suite and training towards Security+, Network+, and CISSP.