0x4A was founded by Jesper Larsson and is a result of his lifelong curiosity for complexity. What began as an early interest in picking physical objects apart to see how they worked eventually led to tinkering with computer code, learning how to exploit vulnerabilities and even preventing them. It’d probably be no surprise to young Jesper that his grown-up self has been professionally active in the IT industry since 2003. Jesper has been instrumental in implementing secure infrastructure solutions worldwide. In 2015, he co-founded a security consulting firm with an elite team of experts. In 2016, he joined penetration testing company Cure53 as a security and infrastructure specialist focusing on networks, VPNs, infrastructure, orchestrations, and deployment pipelines. In the hopes of helping to make the Internet a better place, Jesper has audited numerous open source projects for a variety of nonprofits such as the Cloud Native Computing Foundation. He also co-founded Security Fest, an annual conference held in Gothenburg, Sweden, as a means to help spread industry knowledge. In his spare time, Jesper hosts and produces Säkerhetspodcasten, the first security podcast in Sweden.