Jamieson O'Reilly is an offensive security specialist and entrepreneur who has run high-stakes red team operations against some of the hardest targets in the world, including banks, casinos, and government agencies, emulating advanced persistent threat actors to help organisations remediate weaknesses before adversaries can.

In 2016, he founded Dvuln, an Australian CREST-certified offensive security firm pressure-testing some of the world's largest brands against sophisticated attacks from Sydney, Melbourne, and Brisbane. His specialisations span offensive operations, exploit development, counter-detection, social engineering, HUMINT, and cryptography. He co-authored the post-quantum encryption specification PPQM and leads the OWASP Penetration Test Reporting Standard project.

He co-founded Aether AI (tryaether.ai), where he serves as CEO. Aether builds the world's most advanced autonomous Attack AI: swarms of frontier agents that continuously emulate adversaries and close the gap against AI-powered threats. Aether AI has demonstrated breakthrough results breaching hardened enterprise and government environments globally.

Jamieson is a member of BT6 (bt6.gg), the elite frontier AI red team collective known as the SEAL Team 6 of the latent space, conducting adversarial research on frontier models and autonomous agents. His public work includes the 2026 Grok and Moltbook research, a multi-modal exploit against a live frontier model and platform that drew widespread coverage.

During OpenClaw's explosive rise as the world's fastest-growing software, Jamieson served as Security and Trust Advisor / Security Lead, leading offensive testing, platform hardening, supply-chain defence, threat modelling, and trust and safety strategy.

Vulnerability disclosure has been a constant. In 2016 he reported a critical flaw in the Vidyo teleconference platform used by the US Army, NASA, and CERN. His published work dates back to 2013, covering bank-targeted RAM scrapers, phishing, and SQL injection bypasses. His "Fish in a Barrel" research surfaced how Australia's cleared personnel expose themselves through everyday digital footprints.

He previously served as Lead Cyber Security Advisor at IDVERSE (acquired by LexisNexis), Co-Founder and Director of Intelligence at Content Protection (2014 to 2018), and Security Engineer at Tenable (2012 to 2013).

Today, Jamieson serves on the CREST Australasia Advisory Council, holds multiple Australian security clearances, and is a regular source for Australian and international media on major cyber incidents and emerging threats.