Post-Quantum Cryptography refers to cryptographic methods designed to be secure against the potential threats posed by quantum computers. As quantum computing advances, it could efficiently break many conventional cryptographic systems, such as those based on RSA or ECC. In the realm of digital currencies, the security of transactions and wallets relies heavily on these cryptographic techniques. If quantum computers become powerful enough, they could compromise the privacy and integrity of these transactions, allowing unauthorized access to funds and personal data.To mitigate this risk, researchers are developing new algorithms that would remain secure even in the presence of quantum computing capabilities. These new methods often use different mathematical foundations that are believed to be resistant to quantum attacks.Implementing post-quantum cryptography is crucial for future-proofing digital currencies, ensuring that they remain secure as technology evolves. Transitioning to these new cryptographic standards will take time and careful implementation, but it is essential for maintaining trust and security in the financial systems built on blockchain technology.