Earlybird
LinkedIn influencers

Daniel Grzelak

Chief Information Security Officer turned Chief Innovation Officer turned Super Serious Internet Guy

TechAustraliaGreater Sydney AreaView on LinkedIn

Followers

6,926

Typical engagement per post

31

Average comments per post

8

How often they post

Every 2 weeks

Profile figures as of October 2026.

About

Daniel is a highly experienced, internationally recognised information security specialist. He is highly motivated and always seeking new challenges where he can apply his problem solving and analytical skills. Highlights include: * Presenter at AusCERT, Ruxcon, Kiwicon, AISA National, HK InfoSec Summit, Unrest, Canterbury Tech Summit, OWASP AppSec Day * Led and grew security functions at 2 multi-billion dollar organisations * Delivered and managed hundreds of consulting projects * Developer and leader of application security consulting practice at SIFT (stratsec) * Named in a GovCERT bulletin in recognition of SCADA security research * Co-author of 'Web Services Security Testing Framework' * Co-author of TISN ‘Secure Your Information’ * Co-author of DBCDE Future of the Internet Project’s ‘Reliability of the Internet’ * Co-author of TISN ‘Managing DoS Attacks’ * Author of ‘Log Injection Attack and Defence * Developer of InterProber, WebMethodSearch, and Project SPACECRAB * Creator and instructor of stratsec Secure Web Application Development training course * Creator and instructor of stratsec Web Application Cryptography training course * Founder of ShouldIChangeMyPassword.com * Founder of GamerInstitute.com and TorchForGaming.org

When they post

In Earlybird

The hours Daniel usually posts

See when Daniel posts and be early on the next one

Add Earlybird to Chrome