“Already at school in the mid 80th Johannes was a computer geek. I joined advanced placement courses in mathematics and physics with him.”
Dr. Johannes Ullrich
Jacksonville, Florida, United States
13K followers
500+ connections
Jacksonville, Florida, United States
13K followers
500+ connections
About
As the Dean of Research at SANS Technology Institute, I oversee the academic and applied…
Activity
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Throughout my cybersecurity career, I have pursued numerous certification courses and taken several certification exams. Among these, some of the…
Throughout my cybersecurity career, I have pursued numerous certification courses and taken several certification exams. Among these, some of the…
Liked by Dr. Johannes Ullrich
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Daily Internet Storm Center "Stormcast": XLS Hash Collisions; Nette Attacks; Squarespace Domain Hijack
Daily Internet Storm Center "Stormcast": XLS Hash Collisions; Nette Attacks; Squarespace Domain Hijack
Shared by Dr. Johannes Ullrich
Experience & Education
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SANS Technology Institute
View Dr. Johannes’s full experience
See their title, tenure and more.
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Licenses & Certifications
Volunteer Experience
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Vice President
Preservation SOS
Arts and Culture
http://www.preservationsos.org
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President
DShield.org
Science and Technology
Publications
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Development of the Higher Education Network Analysis (HENA) for Intrusion Detection and Prevention
Presented at NY State Cyber Security Conference
Other authors -
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Internet intrusions: global characteristics and prevalence
ACM SIGMETRICS
Other authors -
Courses
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Defending Web Applications
DEV522
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IPv6 Security Essentials
SEC546
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Intrusion Detection in Depth
SEC503
Honors & Awards
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ISSA President's Award for Public Service 2018
ISSA
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Best Security Podcast
Security Bloggers Network
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Historic Preservation Award
City of Jacksonville
Mobile Web Application for Historic Springfield
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Best Technical Security Blog
Security Bloggers Network
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Best Technical Security Blog
Security Bloggers Network
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Best Paper Award
Usenix
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Top 5 Influential Security Thinkers
SC Magazine
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Top 50 most powerful people in networking
Network World
Languages
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English
Native or bilingual proficiency
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German
Native or bilingual proficiency
Organizations
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GIAC
Advisory Board Member
Recommendations received
4 people have recommended Dr. Johannes
Join now to viewMore activity by Dr. Johannes
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There is nothing I dread So much, as a Division of the Republick into two great Parties, each arranged under its Leader, and concerting Measures in…
There is nothing I dread So much, as a Division of the Republick into two great Parties, each arranged under its Leader, and concerting Measures in…
Liked by Dr. Johannes Ullrich
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16-bit Hash Collisions in .xls Spreadsheets
16-bit Hash Collisions in .xls Spreadsheets
Shared by Dr. Johannes Ullrich
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SECURITY INCIDENT! Just a few minutes ago, I was in my home office during our weekly company meeting and I heard footsteps on the porch. I then heard…
SECURITY INCIDENT! Just a few minutes ago, I was in my home office during our weekly company meeting and I heard footsteps on the porch. I then heard…
Liked by Dr. Johannes Ullrich
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Attacks against the "Nette" PHP framework CVE-2020-15227
Attacks against the "Nette" PHP framework CVE-2020-15227
Shared by Dr. Johannes Ullrich
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Daily Internet Storm Center "Stormcast": Honeypot Fingerprinting; Veeam Exploited; Juniper Patches; VMWAre Aria SQLi; SMS Leak
Daily Internet Storm Center "Stormcast": Honeypot Fingerprinting; Veeam Exploited; Juniper Patches; VMWAre Aria SQLi; SMS Leak
Shared by Dr. Johannes Ullrich
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Understanding SSH Honeypot Logs: Attackers Fingerprinting Honeypots
Understanding SSH Honeypot Logs: Attackers Fingerprinting Honeypots
Shared by Dr. Johannes Ullrich
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Thanks for the Antisyphon folks for moving on this so quickly. I'm really looking forward to this and to continue teaching, I love it!
Thanks for the Antisyphon folks for moving on this so quickly. I'm really looking forward to this and to continue teaching, I love it!
Liked by Dr. Johannes Ullrich
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FREE HANDS ON LEARNING OPPORTUNITY Hey, I just wanted to let you know about two free hands-on learning opportunties you have right now. First, I…
FREE HANDS ON LEARNING OPPORTUNITY Hey, I just wanted to let you know about two free hands-on learning opportunties you have right now. First, I…
Liked by Dr. Johannes Ullrich
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Daily Internet Storm Center "Stormcast": DBSCAN and Honeypot Data; Another SSH Vuln; URL File Exploit; Sharepoint PoC; Citrix and OpenVPN updates
Daily Internet Storm Center "Stormcast": DBSCAN and Honeypot Data; Another SSH Vuln; URL File Exploit; Sharepoint PoC; Citrix and OpenVPN updates
Shared by Dr. Johannes Ullrich
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EXCITING NEWS ✨ The application for our 2025 Paller Cybersecurity Scholarship cohort will open in October. Learn about our international scholarship…
EXCITING NEWS ✨ The application for our 2025 Paller Cybersecurity Scholarship cohort will open in October. Learn about our international scholarship…
Liked by Dr. Johannes Ullrich
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Finding Honeypot Data Clusters Using DBSCAN: Part 1
Finding Honeypot Data Clusters Using DBSCAN: Part 1
Shared by Dr. Johannes Ullrich
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Sincerest appreciation to the SANS Technology Institute for this opportunity. Deepest appreciation to Dr. Johannes Ullrich (x 2), Caroline Carter…
Sincerest appreciation to the SANS Technology Institute for this opportunity. Deepest appreciation to Dr. Johannes Ullrich (x 2), Caroline Carter…
Liked by Dr. Johannes Ullrich
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Daily Internet Storm Center "Stormcast": Microsoft Patches; Adobe Patches; RADIUS Vuln;
Daily Internet Storm Center "Stormcast": Microsoft Patches; Adobe Patches; RADIUS Vuln;
Shared by Dr. Johannes Ullrich
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