Fancy About

Daniel B. Cid is the founder of the open source OSSEC HIDS and the Founder/CTO of Sucuri, Inc. He is passionated about intrusion detection, log analysis (log-based intrusion detection), web-based malware research and secure development.

He is an active member of the open source and security community, specially known for creating the OSSEC HIDS (Intrusion detection system) and founding Sucuri. He is also the co-writer of the Host-Based Intrusion Detection book.

In the past, he worked at Trend Micro, Q1Labs (now IBM), Sourcefire (now Cisco) and on his own ventures.

On June 2008, he sold his open source project OSSEC to Trend Micro, and joined Trend as the lead of OSSEC development.

I am Social

Well, not really. But I am on Twitter (@danielcid) and on Linkedin.

I used to blog here: (most OSSEC-related), but I am sharing my latest thoughts on here: and on the Sucuri blog:

You can also reach me via email: or

Book and OSSEC

My OSSEC book is available on Amazon:

And you can follow the OSSEC development via my bitbucket repository:

Interviews and Papers

Some interviews with me:

Old Conferences and papers

Old OSSEC Proud moments



Some public pictures of me. More here:

img/daniel_cid.jpg img/daniel_cid_dcid_ossec_small.jpg img/daniel-cid-lights3.png

Quick Links


External Projects