Hack'a Valley 2026 Sessions Highlight AI Agent Security and Common Developer Oversights

Systems student Thiago's account from the Hack'a Valley Security Conference in Paraíba Valley, Brazil, covers all nine Technical Track presentations held in a single day. The author stresses that security should be built into software from the start rather than added as a separate layer at the end. One session by CI&T's Poliana Moraes examined autonomous AI agents, noting that their probabilistic behavior demands new safeguards such as least-privilege service identities and human confirmation for high-impact actions. Another talk by Thiago Bordini, drawing on two decades of incident response work, found that major breaches usually result from simple mistakes like exposed API keys, public code repositories, and missing multi-factor authentication rather than advanced zero-day exploits.