理学 网络攻击 释 hacker 黑客 拥有高深的计算机及网络知识，能够躲过系统安全控制，达到进入或破坏计算机系统或网络的非法用户。利用公共通信网路，如互联网和电话系统，在未经许可的情况下，载入对方系统的被称为黑帽黑客（black hat，另称cracker）；调试和分析计算机安全系统的称为白帽黑客（white hat）。
信息安全 系统安全分析与漏洞挖掘 释文 hacker 黑客
- Picard small theorem
- Picard successive approximation method
- Picard theorem
- Picard type theorem
- Picard value
- Picard variety
- Picard-Vessiot extension field
- Picard-Vessiot theory
- picardy third
- Picaresque novel
- Picasso And His Bull
- PICC
- Piccard
- piccolo
- Piccolomini crater
- Pic du Midi Observatory
- Picea Evergreen Needleleaf Forest
- Picea meyeri Evergreen Needleleaf Forest
- piceance basin tight gas
- picein
- picene
- Pichia stipitis
- Pick
- pickaxe
- picked dogfish