Mark Langston Email & Phone Number

Columbia, South Carolina, Us

Pittsburgh, Pennsylvania, Us

Where I work is not a CERT, it is THE CERT. To understand our mission, please see http://cert.org/about/* Explores innovative new ways to bring to bear network flow metadata, raw packet captures, behavior-based indicators, machine learning, and various enrichment techniques to provide government departments and agencies with deeper, more robust, timely, and actionable network intelligence. * Designs and employs unique network visualization techniques to provide real-time or retrospective insight into threat behavior.* Works in cooperation with various government agencies (DHS, DISA, DoD, USSS, etc.) to understand, coordinate, and satisfy sponsor needs* Architects and employs big data analytics (R, Spark, Hadoop, etc.) to quickly mine potential threat data to facilitate and enhance threat hunt and situational awareness capabilities* Provides subject-matter expertise (SME) in consultative/advisory roles across functional groups within the organization and to government departments and agencies* Works to understand Computer Network Defense (CND), Computer Network Exploitation (CNE), and Computer Network Attack (CNA) in a holistic manner, applying lessons from each across the spectrum of Blue Team/Red Team activities* Provides classroom instruction on a variety of topics (e.g., Cyber Kill Chain, cryptography, etc.) to various government departments and agencies* Gives back to the community through conference presentations, white papers, etc.

• Instrumental in winning company’s largest multi-million-dollar ISP sale, creating test and presentation strategy• Hardened DDI products using Ixia BreakingPoint, Metasploit, Kali Linux, various fuzzing tools• Ensured product security posture by developing automated security regression tests in Python• Promoted balance between product security and performance by designing efficient anti-DDoS algorithm

Redwood City, Ca, Us

• Analyzed product traffic via Wireshark to discover new product attacks and worked with developers to devise countermeasures• Mined terabytes of packet traffic for pattern analysis using Python and C• Collaborated with developers to develop novel product features and attack countermeasures without sacrificing performance

• Ensured customer security through vulnerability assessments using off-the-shelf tools such as Metasploit, Nessus, nmap, hping, etc.• Analyzed customer logs for anomalous or otherwise suspicious activity• Evaluated customers’ attack surfaces and assessed customer security• Recommended improvements to customer security architecture based on reported findings

• Integrated third-party antivirus solutions into proprietary, legacy C interface for sendmail• Collaborated on design and development of new security features, including antispam and antivirus solutions• Reverse-engineered legacy or third-party software via black-box testing

M.A., Experimental Cognitive Psychology

B.S., Experimental Cognitive Psychology