中国银联(China UnionPay)
中国银联 - 最权威的银行卡门户网站，提供全方位的银行卡资讯与服务，最齐全的银联标准卡产品搜索比较，出境银联卡使用指南，信用卡免费跨行还款，境内外ATM查询定位。
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中华人民共和国国家发展和改革委员会
中华人民共和国国家发展和改革委员会www.sdpc.gov.cn含新闻发布，城市发展规划，年度计划，能源交通信息，高科技产业发展等专题。
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The Metasploit Project
The Metasploit Framework is the open source penetration testing framework with the world's largest database of public, tested exploits.
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SecurityFocus
SecurityFocus is the most comprehensive and trusted source of security information on the Internet.
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Computer Security vulnerabilities
Computer security and information security: advisories, exploits and vulnerabilities database, articles and security news.
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