Guillermo Ferrero
Senior Analyst DFIR at Salesianos España
Granada, Andalusia, Spain
Summary
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Senior🎓
Top SchoolGuillermo Ferrero is a Senior DFIR analyst with 11 years’ experience in cybersecurity, currently at Thomas Murray after leading cyber risk engagements at Kroll and Telefónica’s Global CSIRT. Trained in Computer Engineering (University of Valladolid) with a postgraduate in Information and Communications Security, he pairs deep technical skills—network protocol analysis, embedded systems, fault injection and hardware/IoT security—with practical incident response and forensic experience. He has delivered offensive and defensive work across consultancy, in-house CSIRT and teaching roles, and still teaches cryptography, wireless security and hardware hacking to the next generation. Comfortable building custom parsing tools and performing OSINT/footprinting, he brings an investigator’s mindset to complex breaches and risk assessments. Notably, his early work on software fault injection during an Erasmus placement and hands-on embedded systems deployments inform a strong appreciation for low-level failure modes often missed in high-level incident triage. Based in Granada, he stays actively engaged in continuous learning and applied research on emerging threats.
11 years of coding experience
3 years of employment as a software developer
Master's Degree in Security of Information and Communication Technologies IT Security, Master's Degree in Security of Information and Communication Technologies IT Security at Universidad EuropeaDegree on IT Engineering Information Technologies, Degree on IT Engineering Information Technologies at Universidad de Valladolid
Spanish, English
Github Skills (29)
que10
las9
spanish9
mirai-bot9
connectors6
threat-intelligence6
api6
pdf6
cybersecurity6
opencti6
mitre-attack6
analyzer6
rest5
metadata5
docx5
Programming languages (2)
Github contributions (5)
hartek/metadatos
May 2016 - Nov 2016
Example script that recovers metadata from PDF and DOCX files
Contributions:17 commits, 13 pushes, 1 branch in 6 months
docx-filesdocxpdfmetadata
hartek/AIRE-PoC
May 2018 - May 2018
Contributions:4 commits, 2 pushes in 1 day
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