#CryptoSecurity101 Security in the cryptographic world is a shared responsibility among users, platforms, and the technology itself. It starts with the architecture of blockchains: their decentralized nature distributes information among thousands of nodes, making it nearly impossible to alter already validated transactions. Cryptography acts as the first line of defense, where private keys—similar to unique and non-transferable keys—protect access to funds. Losing them or exposing them is akin to handing the vault of assets to a stranger.

However, threats are persistent and evolving. Phishing leads the risks: fake sites that mimic legitimate exchanges or wallets deceive unsuspecting users to steal their credentials. Attacks on centralized platforms also persist, exploiting vulnerabilities in custody systems or human errors. Even blockchains can suffer manipulation attempts, such as the 51% attack, where a miner with majority computational power tries to reverse transactions.

For users, self-custody in cold wallets—physical devices disconnected from the internet—is the safest option, although it requires personally managing recovery keys. On exchanges, measures such as two-factor authentication and withdrawal whitelists add layers of protection. Regular audits of smart contracts prevent failures that could drain funds, while local regulations seek to standardize security practices, such as identity checks for custodial services.

The most vulnerable link remains the human factor: weak passwords, unprotected public networks, or naivety in the face of fraudulent offers. Therefore, constant education is the ultimate shield: recognizing scams such as pyramid schemes or fake tokens prevents irreversible losses. In an ecosystem without reversals or intermediaries, prevention is not optional: it is the currency that preserves your financial sovereignty.