하드웨어 월렛
물리적 보안 장치 지갑.
Core Components: 1. Authentication (Who are you?). 2. Authorization (What can you do?). 3. Accounting (What did you do?). Threats: Malware, Phishing, [SQL Injection](/ko/terms/sql-injection), Ransomware. Defense: Hashing, Patch management, Vulnerability scanning.
graph LR
Center["하드웨어 월렛"]:::main
Rel_hardware_wallet_guide["hardware-wallet-guide"]:::related -.-> Center
click Rel_hardware_wallet_guide "/terms/hardware-wallet-guide"
Rel_crypto_wallet["crypto-wallet"]:::related -.-> Center
click Rel_crypto_wallet "/terms/crypto-wallet"
Rel_custodial_wallet["custodial-wallet"]:::related -.-> Center
click Rel_custodial_wallet "/terms/custodial-wallet"
classDef main fill:#7c3aed,stroke:#8b5cf6,stroke-width:2px,color:white,font-weight:bold,rx:5,ry:5;
classDef pre fill:#0f172a,stroke:#3b82f6,color:#94a3b8,rx:5,ry:5;
classDef child fill:#0f172a,stroke:#10b981,color:#94a3b8,rx:5,ry:5;
classDef related fill:#0f172a,stroke:#8b5cf6,stroke-dasharray: 5 5,color:#94a3b8,rx:5,ry:5;
linkStyle default stroke:#4b5563,stroke-width:2px;
🧒 5살도 이해할 수 있게 설명
Imagine you have a top-secret diary. Data Security is having a sturdy box with a lock for it ([Encryption](/ko/terms/encryption)), keeping the box in a room with a guard at the door ([Firewall](/ko/terms/firewall)), and making sure the guard only lets you in if you show your ID and tell him a secret password (MFA). It's all the steps you take to make sure nobody reads or ruins your secrets.
🤓 Expert Deep Dive
Technically, data security must be applied 'In Depth' across multiple layers. '[Encryption at Rest](/ko/terms/encryption-at-rest)' protects data on physical disks using standards like AES-256, while 'Encryption in Transit' (TLS) protects it as it moves across networks. 'Data Loss Prevention' (DLP) systems monitor outgoing traffic to prevent sensitive info (like credit card numbers) from leaving the network. A modern 'Zero Trust' architecture assumes that threats exist both inside and outside the network, requiring continuous verification for every access request. Furthermore, 'Data Masking' or 'Obfuscation' can be used in development environments, allowing programmers to work with realistic data without seeing the actual private information of real customers.