In this podcast we offer a comprehensive overview of the Trusted Platform Module (TPM), a specialised hardware chip crucial for modern computer security. We explain what a TPM is, detailing its internal components like cryptographic engines, unique keys, and Platform Configuration Registers (PCRs), which enable secure operations. It also describe how TPMs function, from generating and storing keys to verifying system integrity during boot-up, underpinning features like secure boot and full-disk encryption. Furthermore, it discusses the critical need for TPMs in safeguarding data and authenticating devices in today's threat landscape. Finally, assess the security of TPMs, acknowledging their strengths in hardware isolation and tamper resistance, while also outlining potential vulnerabilities such as physical attacks and implementation flaws, highlighting the importance of regular updates and best practices.