<div></div><div><figure style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 14px; line-height: inherit; margin: 32px -54.2188px 0px 0px; padding: 0px; vertical-align: baseline; background-color: #111111; clear: both;"><span style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline; display: block; position: relative;"><img alt="批评者认为华为制造的网络设备可能内建隐藏功能，让华为截取流经这些设备的资料。" src="https://ichef.bbci.co.uk/news/660/cpsprodpb/1026/production/_102143140_hi046966648.jpg" width="976" height="549" data-highest-encountered-width="660" style="color: #bdbdbd; font-style: inherit; font-family: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline; height: auto; max-width: 100%; user-select: none; width: 645.781px; display: block;" /><span style="border: 0px !important; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px !important; vertical-align: baseline; clip: rect(1px 1px 1px 1px); overflow: hidden; position: absolute !important; height: 1px !important; width: 1px !important;">图片版权</span><span style="border: 0px; color: #ececec; font-style: inherit; font-family: inherit; font-size: 0.875rem; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.14286; margin: 0px; padding: 3px 8px 1px; vertical-align: baseline; text-transform: uppercase; background: rgba(0, 0, 0, 0.6); bottom: 0px; position: absolute; right: 0px;">REUTERS</span></span><figcaption style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;"><span style="border: 0px !important; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px !important; vertical-align: baseline; clip: rect(1px 1px 1px 1px); overflow: hidden; position: absolute !important; height: 1px !important; width: 1px !important;">Image caption</span><span style="border: 0px; color: #ececec; font-style: inherit; font-family: inherit; font-size: 0.75rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.33333; margin: 0px; padding: 0px; vertical-align: baseline; display: block;">批评者认为华为制造的网络设备可能内建隐藏功能，让华为截取流经这些设备的资料。</span></figcaption></figure><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; font-weight: bold; line-height: 1.75; margin-top: 28px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">中兴受美国政府制裁，前途未明之际，中国另一家通讯网络设备制造商华为在澳大利亚也碰上麻烦。澳洲传媒引述消息指，当地政府会禁止华为参加建造当地的5G流动通讯网络。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">《澳洲金融评论报》（Australian Financial Review）6月13日引述知情人士指，当地政府会禁止华为参加建造当地的5G流动通讯网络，因为华为公司高层与中国政府有联系，可能会对建成的5G网络构成安全威胁。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">中国制造的网络设备之前已经引起类似的争议。澳洲政府早前宣布资助南太平洋的所罗门群岛兴建海底电缆，令该国撤销与华为的合约。另外，美国联邦通讯局主席潘吉特（Ajit Pai）四月指，外国制造的网络设备可能内建隐藏功能，让制造商截取流经这些设备的资料。这些“隐藏功能”又被称作“后门”，对美国公众的私隐构成威胁。分析认为他的说法包括华为。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">有网络设备专家对BBC中文表示，许多的软硬件其实都设有这种“后门”，不限于中国制造的产品，让编写软件的人可以更方便地修改或更新程式源始码。但另有专家指出，中国政府可按去年通过的《情报法》要求中国公司配合情报部门的工作，令中国制的网络设备构成威胁，而大部份其他国家制造的设备都没有这个问题。</p><figure style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 14px; line-height: inherit; margin: 24px -24.6406px 0px 0px; padding: 0px; vertical-align: baseline; background-color: #111111; clear: both;"><span style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline; display: block; position: relative;"><img src="https://ichef.bbci.co.uk/news/624/cpsprodpb/5E46/production/_102143142_hi047430864.jpg" datasrc="https://ichef.bbci.co.uk/news/320/cpsprodpb/5E46/production/_102143142_hi047430864.jpg" alt="美国联邦通讯委员会四月曾建议，禁止政府机构向"可能对美国通讯网络构成安全威胁的公司"采购，分析认为这包括华为。" width="976" height="549" data-highest-encountered-width="624" style="color: #bdbdbd; font-style: inherit; font-family: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline; height: auto; max-width: 100%; user-select: none; width: 616.203px; transition: opacity 0.2s ease-in; display: block;" /><span style="border: 0px !important; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px !important; vertical-align: baseline; clip: rect(1px 1px 1px 1px); overflow: hidden; position: absolute !important; height: 1px !important; width: 1px !important;">图片版权</span><span style="border: 0px; color: #ececec; font-style: inherit; font-family: inherit; font-size: 0.875rem; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.14286; margin: 0px; padding: 3px 8px 1px; vertical-align: baseline; text-transform: uppercase; background: rgba(0, 0, 0, 0.6); bottom: 0px; position: absolute; right: 0px;">REUTERS</span></span><figcaption style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;"><span style="border: 0px !important; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px !important; vertical-align: baseline; clip: rect(1px 1px 1px 1px); overflow: hidden; position: absolute !important; height: 1px !important; width: 1px !important;">Image caption</span><span style="border: 0px; color: #ececec; font-style: inherit; font-family: inherit; font-size: 0.75rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.33333; margin: 0px; padding: 0px; vertical-align: baseline; display: block;">美国联邦通讯委员会四月曾建议，禁止政府机构向"可能对美国通讯网络构成安全威胁的公司"采购，分析认为这包括华为。</span></figcaption></figure><h2>“独有的威胁”</h2><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">《澳洲金融评论报》的报道指，当地情报组织对华为的疑虑，与美国对华为的想法“十分相似”。美国联邦通讯委员会四月曾建议，禁止政府机构向“可能对美国通讯网络构成安全威胁的公司”采购。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">美国政府每年都会投放850万美元，资助私人通讯网络公司改善美国郊区的通讯基础建设，如果联邦通讯委员的建议获得通过，中兴和华为将无法参与这个计划。中国外交部发言人华春莹当时回应指，美方的行为是“以国家安全之名，行贸易保护主义之实”。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">华为在澳洲的分公司6月18日发出公开信，指有关华为网络设备安全的指控“没有事实根据”。公开信强调，华为在各国的运作都遵守当地法规，信件指拒绝让华为参与建设澳洲的5G网络对当地“没有好处”。公开信又指，目前华为在英国、加拿大及新西兰均有投资5G项目，当地政府亦同意对华为项目进行网络安全评估，以断定该公司是否合乎相应标准，但澳洲当局却拒绝进行类似评估。BBC中文曾就公开信向华为查询，但至截稿前未获回应。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">中国驻澳洲大使6月19日在首都堪培拉国会大厦出席活动发表演说时，没有正面回应华为事件，但他呼吁中澳两国要不断“克服冷战思维”，也需要建立更多互信，不断缩小误解。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">澳大利亚战略政策研究所（Australian Strategic Policy Institute）访问学者尤伦（Tom Uren）接受BBC中文采访时指出，华为的信件无法令外界释疑。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">他指出，外界忧心的根源是中国去年通过的《情报法》，该法第七条要求中国国内任何组织和公民要“依法支持、协助和配合国家情报工作”。他认为当局可以按《情报法》要求华为与当局合作，让中国政府了解华为制造的网络设备如何运作。“这样做的话，他们不会触犯澳洲任何法律，但仍可帮助中国情报组织的工作。”</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">尤伦又说，中国政府制定《情报法》不利中国企业的海外业务。“他们这样做，令其他国家无法信任中国公司，为其他国家建造一些重要的网络基础建设。”</p><ul style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 14px; line-height: inherit; margin: 18px 0px 0px; padding: 0px; vertical-align: baseline; list-style: none; background-color: #ffffff;"><li style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.75; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline; list-style: square outside;"><a href="http://www.bbc.com/zhongwen/simp/chinese-news-40905202" style="border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: #dcdcdc; border-left-color: initial; border-image: initial; color: #222222; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: bold; letter-spacing: inherit; line-height: 1.75; margin: 0px; padding: 0px; vertical-align: baseline; text-decoration-line: none; -webkit-tap-highlight-color: rgba(17, 103, 168, 0.3);">中国《网络安全法》保护的是谁的安全？</a></li><li style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.75; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline; list-style: square outside;"><a href="http://www.bbc.com/zhongwen/simp/chinese-news-43836294" style="border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: #dcdcdc; border-left-color: initial; border-image: initial; color: #222222; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: bold; letter-spacing: inherit; line-height: 1.75; margin: 0px; padding: 0px; vertical-align: baseline; text-decoration-line: none; -webkit-tap-highlight-color: rgba(17, 103, 168, 0.3);">中国历史如何影响了其网络审查和宗教自由</a></li><li style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.75; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline; list-style: square outside;"><a href="http://www.bbc.com/zhongwen/simp/chinese-news-40056223" style="border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: #dcdcdc; border-left-color: initial; border-image: initial; color: #222222; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: bold; letter-spacing: inherit; line-height: 1.75; margin: 0px; padding: 0px; vertical-align: baseline; text-decoration-line: none; -webkit-tap-highlight-color: rgba(17, 103, 168, 0.3);">中国网民看“网络实名制”</a></li></ul><h2>网络设备“后门”的忧虑有技术根据吗？</h2><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">香港大学电机电子工程系助理教授林皇兴向BBC中文介绍，网络设备制造商在技术上确实可以利用“后门”，令网络营办商安装设备后，命令这件设备自动截取流经的资料，发送回制造商指定的地点，但他形容这种做法“愚蠢”，因为很容易就会被人侦测到。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">香港科技大学资讯、商业统计及营运学系副系主任许佳龙接受BBC中文访问时也指出，WhatsApp等软件传输讯息前通常都会先把它加密，因此任何人截取得来的只会是已加密的讯息，但一般电话语音通话等没有被加密的资料就可以被截取。</p><figure style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 14px; line-height: inherit; margin: 24px -24.6406px 0px 0px; padding: 0px; vertical-align: baseline; background-color: #111111; clear: both;"><span style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline; display: block; position: relative;"><img src="https://ichef.bbci.co.uk/news/624/cpsprodpb/AC66/production/_102143144_hi043826266.jpg" datasrc="https://ichef.bbci.co.uk/news/320/cpsprodpb/AC66/production/_102143144_hi043826266.jpg" alt="专家指，智能手机通讯程式通常都会把讯息加密，如果无法解密，即使把讯息截取也无法理解当中的讯息。" width="976" height="549" data-highest-encountered-width="624" style="color: #bdbdbd; font-style: inherit; font-family: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline; height: auto; max-width: 100%; user-select: none; width: 616.203px; transition: opacity 0.2s ease-in; display: block;" /><span style="border: 0px !important; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px !important; vertical-align: baseline; clip: rect(1px 1px 1px 1px); overflow: hidden; position: absolute !important; height: 1px !important; width: 1px !important;">图片版权</span><span style="border: 0px; color: #ececec; font-style: inherit; font-family: inherit; font-size: 0.875rem; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.14286; margin: 0px; padding: 3px 8px 1px; vertical-align: baseline; text-transform: uppercase; background: rgba(0, 0, 0, 0.6); bottom: 0px; position: absolute; right: 0px;">GETTY IMAGES</span></span><figcaption style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;"><span style="border: 0px !important; color: inherit; font-style: inherit; font-family: inherit; font-size: 14px; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px !important; vertical-align: baseline; clip: rect(1px 1px 1px 1px); overflow: hidden; position: absolute !important; height: 1px !important; width: 1px !important;">Image caption</span><span style="border: 0px; color: #ececec; font-style: inherit; font-family: inherit; font-size: 0.75rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.33333; margin: 0px; padding: 0px; vertical-align: baseline; display: block;">专家指，智能手机通讯程式通常都会把讯息加密，如果无法解密，即使把讯息截取也无法理解当中的讯息。</span></figcaption></figure><ul style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 14px; line-height: inherit; margin: 18px 0px 0px; padding: 0px; vertical-align: baseline; list-style: none; background-color: #ffffff;"><li style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.75; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline; list-style: square outside;"><a href="http://www.bbc.com/zhongwen/simp/chinese-news-44537688" style="border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: #dcdcdc; border-left-color: initial; border-image: initial; color: #222222; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: bold; letter-spacing: inherit; line-height: 1.75; margin: 0px; padding: 0px; vertical-align: baseline; text-decoration-line: none; -webkit-tap-highlight-color: rgba(17, 103, 168, 0.3);">澳洲“封杀”华为：国家安全与“一带一路”的考量</a></li><li style="border: 0px; color: inherit; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: inherit; letter-spacing: inherit; line-height: 1.75; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline; list-style: square outside;"><a href="http://www.bbc.com/zhongwen/simp/world-44382432" style="border-width: 0px 0px 1px; border-top-style: initial; border-right-style: initial; border-bottom-style: solid; border-left-style: initial; border-top-color: initial; border-right-color: initial; border-bottom-color: #dcdcdc; border-left-color: initial; border-image: initial; color: #222222; font-style: inherit; font-family: inherit; font-size: 1rem; font-weight: bold; letter-spacing: inherit; line-height: 1.75; margin: 0px; padding: 0px; vertical-align: baseline; text-decoration-line: none; -webkit-tap-highlight-color: rgba(17, 103, 168, 0.3);">“中国干预”和国家安全：澳洲“七嘴八舌”辩论的背后</a></li></ul><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">美国《华尔街日报》早前引述一名前美国国防部网络安全专家米海尔契奇（David Mihelcic）指，网络营运商都使用先进的监控系统，如果网络设备制造商利用设备内建的隐藏功能发动攻击或截取讯息，很快就会被营运商侦测到，安装软件堵塞这些功能。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">但许佳龙认为这个方法有漏洞。他举例说，2014年黑客在美国零售商达吉特公司（Target）的信用卡刷卡机安装间谍软件，偷取吉特公司客户的信用卡资料，吉特公司在超过两星期后才发现漏洞。</p><p style="border: 0px; color: #404040; font-variant-numeric: inherit; font-family: Helvetica, Arial, STHeiti, 华文黑体, "Microsoft YaHei", 微软雅黑, SimSun, 宋体, "WenQuanYi Micro Hei", sans-serif; font-size: 1rem; line-height: 1.75; margin-top: 18px; padding: 0px; vertical-align: baseline; background-color: #ffffff;">许佳龙，负责管理网络的人员必须紧密地监控网络，才可以侦测到这些不寻常的数据流量，但许多负责网络安全的人员对此“并不警觉”。</p> </div>