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Rex Guo, Ph.D. Email & Phone Number
Co-Founder and CEO
at
Culminate
1 work email found
@cisco.com
3 phones found area 347 and 408
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 100%
Current company
Role
Co-Founder and CEO
Location
San Francisco Bay Area, United States, United States
Company size
Who is Rex Guo, Ph.D.? Overview
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Quick answer
Rex Guo, Ph.D. is listed as Co-Founder and CEO at Culminate, a company with 18 employees, based in San Francisco Bay Area, United States, United States. AeroLeads shows a work email signal at cisco.com, phone signal with area code 347, 408, and a matched LinkedIn profile for Rex Guo, Ph.D..
Rex Guo, Ph.D. previously worked as Co-Founder/CEO at Culminate and Principal Software Engineer at Lacework. Rex Guo, Ph.D. holds Doctor Of Philosophy (Ph.D.) from New York University.
Company email context
Email format at Culminate
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*@cisco.com
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AeroLeads found 1 current-domain work email signal for Rex Guo, Ph.D.. Compare company email patterns before reaching out.
Profile bio
About Rex Guo, Ph.D.
Rex Guo has worked in engineering and security for over 15 years. He has built products that transform the work of thousands of enterprise customers. He is currently Co-Founder/CEO of Culminate, a startup producing the AI workforce for the security teams. We take care of the repetitive and labor intensive work so your team can focus on the strategic work.Previously, he led multiple zero to one product initiatives at Lacework, e.g., Attack path analysis was built in 3 months and became the quickest growing product by revenue at Lacework.Before that, he was the Head of Research at Confluera (XDR company acquired by XMCyber). The XDR product was the industry first product provide deterministic attack storyboard across the enterprise environment. Earlier than that, he was an Engineering Manager at Tetration (CWPP company acquired by Cisco). The CWPP product was deployed to over 1 million data center machines. Through his vendor side career, he has investigated dozens of data breaches from ransomware to nation state. He has first hand witnessed that most incident happens because alerts are left behind.Before his vendor side career, he worked on product security, security engineering, and red team at Intel. He also lead and represents the Intel teams to secure millions of iPhones where Intel cellular modem was used.He has authored 40+ patents and publications. He has presented multiple times at Black Hat, DEFCON and others conferences. He is also a MITRE ATT&CK contributor and has disclosed vulnerabilities in critical software (Linux kernel, OpenSSL, Intel IPP, Falco, Tracee, etc.). He holds a PhD from New York University.Twitter: @Xiaofei_REX
Listed skills include Product Development, Information Security, Computer Security, Software Development, and 4 others.
Current workplace
Rex Guo, Ph.D.'s current company
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Culminate
8 roles
Rex Guo, Ph.D. work experience
A career timeline built from the work history available for this profile.
Co-Founder/Ceo
Current- We built the best AI agent helps SOC teams to automate >95% of their manual alert investigation and bring up the minimum bar for tier-1 triage to expert level consistently. Our achievements:
- World's first publicly battle-tested AI SOC analyst at DEFCON's SOC competition, ranking #1 in human investigation performance (augmented by our AI SOC analyst).
- 2024 Top 20 AWS GenAI Accelerator startups from 5300 applications
- 2024 Top 3 RSA Launch Pad FinalistSchedule a demo https://www.culminatesecurity.com/schedule-a-demo
Oct 2023 - Present
Principal Software Engineer
- Lead the exposure graph project which combines posture and runtime data. It is the "Google Map" for enterprise security:- Attack Path Analysis (Zero to GA in 3 months, product skew produces millions monthly revenue).
- File over a dozen patents. Areas cover: LLM, graph algorithm, ML-detection, risk prediction, risk prioritization, threat detection, identity security, etc.
Aug 2022 - Sep 2023
Principal Researcher
- Built the runtime Polygraph to detect cloud native attacks
- Led the system call detection project from 0 to 1
- Led the attack knowledge database and coordinate content creation from 0 to 1
- Blackhat USA and DEFCON speaker on cloud EDR bypass
Dec 2021 - Jul 2022
Head Of Research
- Confluera was acquired by XM Cyber and was backed by Light-speed and Icon ventures, Lane Bess, John Thompson, and Frank Slootman.
- Led our public cloud product development that seamlessly track execution behaviors across hosts, containers, and cloud native services. This helps us land and expand several of our largest customers.
- Grow our revenue by 40% on the cloud side
- Present our research in Blackhat/DEFCON and contributed cloud APT to MITRE ATT&CK framework
Jan 2021 - Dec 2021
Research And Development Engineering Manager
- Tetration was acquired by Cisco. We protect private and public cloud workloadshttps://www.cisco.com/c/en/us/products/data-center-analytics/tetration-analytics/index.htmlFounding engineer of the Tetration CWPP product.
- Protected over 1 million data center machines.
- Investigated dozens of sophisticated and high profile incidents.
- Our innovative AI approach won the 2020 Cisco Data Science Award. Presented by Andrew Ng:)
- built industry-first Meltdown and Spectre exploit detection in 2018 when the vulnerability was first released
Feb 2017 - Jan 2021
Senior Security Researcher
Worked on security engineering, product security, security research, red team, and blue team.Most notably, I led and represented the Intel team across multiple orgs to secure the iPhone where Intel cellular modem's are used.
May 2014 - Feb 2017
Interim Engineering Intern
- Research in the Chief Scientist's Office. Made hundreds of millions of phones more secure
- Mobile platform security
- Cryptography (patent issued on side channel protections)
Jun 2013 - Sep 2013
1 education record
Rex Guo, Ph.D. education
-
New York University
FAQ
Frequently asked questions about Rex Guo, Ph.D.
Quick answers generated from the profile data available on this page.
What company does Rex Guo, Ph.D. work for?
Rex Guo, Ph.D. works for Culminate.
What is Rex Guo, Ph.D.'s role at Culminate?
Rex Guo, Ph.D. is listed as Co-Founder and CEO at Culminate.
What is Rex Guo, Ph.D.'s email address?
AeroLeads has found 1 work email signal at @cisco.com for Rex Guo, Ph.D. at Culminate.
What is Rex Guo, Ph.D.'s phone number?
AeroLeads has found 3 phone signal(s) with area code 347, 408 for Rex Guo, Ph.D. at Culminate.
Where is Rex Guo, Ph.D. based?
Rex Guo, Ph.D. is based in San Francisco Bay Area, United States, United States while working with Culminate.
What companies has Rex Guo, Ph.D. worked for?
Rex Guo, Ph.D. has worked for Culminate, Lacework, Xm Cyber, Cisco, and Intel Corporation.
How can I contact Rex Guo, Ph.D.?
You can use AeroLeads to view verified contact signals for Rex Guo, Ph.D. at Culminate, including work email, phone, and LinkedIn data when available.
What schools did Rex Guo, Ph.D. attend?
Rex Guo, Ph.D. holds Doctor Of Philosophy (Ph.D.) from New York University.
What skills is Rex Guo, Ph.D. known for?
Rex Guo, Ph.D. is listed with skills including Product Development, Information Security, Computer Security, Software Development, Algorithms, Cloud Computing, Cryptography, and C (Programming Language.
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