Layer 7 security refers to measures that protect applications and services running on the application layer of the OSI model. In the context of cryptocurrency, this involves safeguarding against threats that target the applications within the blockchain ecosystem, such as wallets, exchanges, and smart contracts.Threats at this layer can include Distributed Denial of Service (DDoS) attacks, phishing attempts, and exploitation of vulnerabilities within app code. Effective Layer 7 security helps ensure that transactions are processed securely and that users’ funds and data remain protected.Common strategies for Layer 7 security include web application firewalls (WAFs), intrusion detection systems, and regular security audits. By implementing these measures, developers and operators can enhance the resilience of their applications, minimize the risk of hacks, and maintain user trust.