Mixing
宣德县 (金朝)
宣德县，中国古县名。
金朝大定二十九年（1189年），改文德县置，治所今河北省宣化县。为宣德州治。元朝中统四年（1263年）为宣德府治。元朝初年为宣宁府治。明朝洪武四年（1371年）省。
这是一个关于河北行政区划的小作品。你可以通过编辑或修订扩充其内容。Information security
This article is part of a series on Information security Related security categories Internet security Cyberwarfare Computer security Mobile security Network security Threats Computer crime Vulnerability Eavesdropping Malware Spyware Ransomware Trojans Viruses Worms Rootkits Bootkits Keyloggers Screen scrapers Exploits Backdoors Logic bombs Payloads Denial of service Defenses Computer access control Application security Antivirus software Secure coding Secure by default Secure by design Secure operating systems Authentication Multi-factor authentication Authorization Data-centric security Encryption Firewall Intrusion detection system Mobile secure gateway Runtime application self-protection (RASP) v t e Information security , sometimes shortened to InfoSec , is the practice of preventing unauthorized access, use, disclosure, disruption, modification, inspection, recording or destruction of information. Th...
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