Post-quantum cryptography (PQC) has gained significant attention in recent years, mainly due to the growing concern over the potential threats posed by quantum computers to traditional public-key cryptographic algorithms such as RSA and ECC. CRYSTALS-Kyber is a lattice-based key encapsulation mechanism (KEM) designed to resist both classical and quantum computers. It can be implemented on commodity processors or specialized hardware to secure all network traffic by encryption. However, standard Kyber implementations are still susceptible to side-channel attacks, specifically power and electromagnetic side channels. This project proposes to investigate a series of less invasive and more realistic power/EM attacks that utilize software measurements to break Kyber key exchanges, compromising the security and authenticity of data communications in a more efficient way.