#CryptoSecurity101 The security of cryptocurrencies is a key aspect that influences the trust of users and investors. Cryptocurrency is based on blockchain technology, which is itself protected from counterfeiting due to decentralization and cryptography. However, risks remain: these include exchange hacks, phishing, vulnerabilities in smart contracts, and leakage of private keys. To protect oneself, it is important to use cold wallets, two-factor authentication, updated software, and to avoid suspicious links. Regulations and oversight are also increasing: more and more countries are introducing laws to protect users. Reliable security requires both technical literacy from users and transparency from crypto platforms.