When working with blockchain security, the set of practices, tools, and protocols that protect blockchain networks and the assets they hold. Also known as crypto security, it helps prevent hacks, fraud, and data leaks.
One core area tied to blockchain security is cryptocurrency privacy, the effort to hide transaction details and user identities on public ledgers. Privacy tools like ring signatures or zero‑knowledge proofs rely on strong security foundations; without them, privacy features can be broken by attackers. At the same time, surveillance technology, systems that monitor blockchain activity for compliance or crime detection pushes security teams to tighten access controls and improve encryption, because every extra eye on the chain creates new attack surfaces.
Enter EigenLayer, a restaking protocol that lets validators lock up ETH or liquid‑staking tokens to secure additional services. By stacking security, EigenLayer multiplies the economic penalty for misbehavior, which in turn strengthens the overall ecosystem. Another trend reshaping security is modular blockchain architecture, the split of execution, consensus, data availability, and settlement into separate layers. This design isolates failures, making it easier to patch one layer without compromising the whole chain.
All these pieces—privacy, surveillance, restaking, and modular designs—create a web of interdependence. Blockchain security encompasses cryptographic audits, while cryptocurrency privacy relies on those audits to stay hidden. Surveillance technology influences security standards, prompting developers to adopt stricter protocols. EigenLayer extends security by adding economic incentives, and modular architecture provides the structural safety net. Understanding how each element fits together gives you a clearer picture of the threat landscape and the tools you can use.
Below you’ll find a curated set of articles that dive deeper into each of these topics—whether you want to compare exchange security features, learn how privacy coins fight surveillance, or explore the latest restaking models. Use them to sharpen your knowledge and protect your assets in an ever‑evolving blockchain world.
Learn how race, Finney and 51% attacks double‑spend crypto, their requirements, real‑world examples, and practical ways to protect your transactions.
Learn what a hash collision is, why it jeopardizes blockchain security, and how modern chains protect against it. Includes real attacks, mitigation tips, and future quantum‑resistance outlook.