Tan Pei Si (Kaskrex) is a seasoned developer with a strong interest in cybersecurity. She is currently working in a cybersecurity film healing thyself in its own cybersecurity posture. Pei Si is an active advocate in the Singapore cybersecurity community — she actively contributes to Division Zero (Div0) and Infosec in the City (IICSG). She is also the pioneer member of Div0’s Car Security Quarter (CSQ). Pei Si’s interest lies in Digital Forensics & Incident Response (DFIR), hardware hacking and DevSecOps.