Quantum computing is no longer a distant dream, its rapid progress is poised to revolutionize various fields from drug discovery to optimization. But this leap forward comes with a critical caveat: the pre-quantum cryptographic algorithms that secure our digital infrastructure today such as RSA and ECC are at risk of being broken. With the rise of quantum capabilities, everything from encryption keys to biometric data could become vulnerable to adversaries. The race is on to transition to quantum-safe cryptography before quantum computers reach a critical threshold. At the heart of this global effort lies Post-Quantum Cryptography (PQC), the new generation of cryptographic algorithms believed to be both quantum and classically secure. Organizations like NIST are leading international efforts to standardize these algorithms. This talk explores the challenges and innovations in transitioning to PQC, with a special focus on the role of hardware implementation and evaluation in ensuring both performance and security. It will take a deep dive into the Hamming Quasi-Cyclic (HQC) algorithm, one of the candidates selected for standardization by NIST in 2025, and examine how HQC performs under practical constraints and potential side-channel threats.