about me

Efraín Reyes

Offensive Security Expert · Ethical Hacker

I am Efraín Reyes, known in the community as Rockysec. CEO of Krill Security, expert in offensive security and artificial intelligence.

I work on hacking, process automation and research that brings value to the community and the industry. I have spent 20 uninterrupted years in cybersecurity, working with companies of every size, across many industries and regions.

A hybrid profile let me keep organizations in finance, oil and gas, healthcare and government secure. In parallel, working independently, I identified vulnerabilities in web and mobile applications of companies such as Indeed, American Express, Comcast and TripAdvisor.

Today I am CEO of Krill Security, where I apply artificial intelligence to autonomous hacking, and I have presented my research at Ekoparty, BSides Córdoba and ClawCon.

I spend part of my time researching new methodologies to optimise the detection and exploitation of vulnerabilities.

milestones

  • NOWBuilding, iterating and improving Krill Security
  • 2026ClawCon Buenos Aires — AI hacking demo
  • 2025Ekoparty speaker — presented autonomous hacking
  • 2025BSides Córdoba speaker — presented hacker vs genAI Reloaded
  • 2024Ekoparty speaker — presented hacker vs genAI
  • 2023Ekoparty speaker — presented El Kraken
  • Bug bountyFindings at Indeed, American Express, Comcast, TripAdvisor, etc.