FBI在调查去年12月在美国发生的枪击案，要求Apple解锁其凶手Syed Rizwen Farook的iPhone。美国政府要求苹果提供「必要的技术协助」来解锁凶手的iPhone 5C，因为苹果的安全性功能妨碍了办案人员的调查。
但苹果执行长拒绝了这项要求，表示此举将是影响用户安全的，整件事在美国闹得沸沸扬扬，库克在刚刚甚至在苹果官网上写了一封公开信，以下是信件全文：
A Message to Our Customers
一封给顾客们的公开信
The United States government has demanded that Apple take an unprecedented step which threatens the security of our customers. We oppose this order, which has implications far beyond the legal case at hand.
美国政府要求苹果做出一个史无前例的举动，而这举动将会威胁到我们顾客的安全。因此我们反抗了这项命令，目前来说，我们这项举动(指违反政府命令)是不合法的。
This moment calls for public discussion, and we want our customers and people around the country to understand what is at stake.
我们希望我们的客户了解整个情况。
The Need for Encryption
加密的必要性
Smartphones, led by iPhone, have become an essential part of our lives. People use them to store an incredible amount of personal information, from our private conversations to our photos, our music, our notes, our calendars and contacts, our financial information and health data, even where we have been and where we are going.
以iPhone为首的智慧型手机，已经变成了我们日常生活中不可或缺的一部分。人们用它来 储存为数惊人的个人资讯，从私人的对话到照片、音乐、笔记、行事历、通讯录等等，还有财务状况、健康资料，甚至连我们去过哪里都有。
All that information needs to be protected from hackers and criminals who want to access it, steal it, and use it without our knowledge or permission. Customers expect Apple and other technology companies to do everything in our power to protect their personal information, and at Apple we are deeply committed to safeguarding their data.
而所有这些资料都必须要避免骇客或罪犯取得，或是在没有许可的情况下使用。我们的客户希望苹果以及其他高科技公司用尽一切努力来保护这些资料，而苹果给予绝对的承诺，会好好守护这些资料。
Compromising the security of our personal information can ultimately put our personal safety at risk. That is why encryption has become so important to all of us.
如果在安全性上妥协，客户们的资料安全性将会受到威胁，这就是为什么加密这件事对我们来说这么重要。
For many years, we have used encryption to protect our customers’ personal data because we believe it’s the only way to keep their information safe. We have even put that data out of our own reach, because we believe the contents of your iPhone are none of our business.
这么多年以来，我们都会将客户的个人资讯加密，因为我们相信这是能保护各位资讯的唯一方式。我们甚至将资料放在自己无法取得的地方，因为我们认为你手机里的资料，就连我们也无权使用。
The San Bernardino Case
关于圣贝纳迪诺枪击案
We were shocked and outraged by the deadly act of terrorism in San Bernardino last December. We mourn the loss of life and want justice for all those whose lives were affected. The FBI asked us for help in the days following the attack, and we have worked hard to support the government’s efforts to solve this horrible crime. We have no sympathy for terrorists.
我们对于去年十二月发生在圣贝纳迪诺的枪击案感到很震惊，也很害怕。我们对于那些逝去的生命感到很惋惜，也希望正义能够为那些还在世的人声张。FBI在攻击事件发生后的几天便来寻求我们的协助，而我们也尽一切可能去帮助FBI解决这件案子，对于恐怖份子，我们毫不同情。
When the FBI has requested data that’s in our possession, we have provided it. Apple complies with valid subpoenas and search warrants, as we have in the San Bernardino case. We have also made Apple engineers available to advise the FBI, and we’ve offered our best ideas on a number of investigative options at their disposal.
当FBI 要求我们提供我们可以给予的资料时，我们也提供了。苹果接受了法院的传票，我们也授权苹果的工程师给予FBI 建议，在协助调查上，我们尽一切的可能给予帮助。
We have great respect for the professionals at the FBI, and we believe their intentions are good. Up to this point, we have done everything that is both within our power and within the law to help them. But now the U.S. government has asked us for something we simply do not have, and something we consider too dangerous to create. They have asked us to build a backdoor to the iPhone.
我们也相当尊重FBI 的专业，我们也相信FBI 的动机是好的。在能力所及以及合法的前提上，我们能协助的地方都给予协助了。但现在美国政府要求我们给予我们根本没有的东西，而且我们也认为是不妥的东西。他们要求我们在iPhone 上提供一个后门。
Specifically, the FBI wants us to make a new version of the iPhone operating system, circumventing several important security features, and install it on an iPhone recovered during the investigation. In the wrong hands, this software — which does not exist today — would have the potential to unlock any iPhone in someone’s physical possession.
更确切的来说，FBI希望我们能够建构一个新的iPhone 系统，躲避维护安全的义务，安装一个可以在调查期间协助FBI 取得资料的后门。如果这个后门落入了不对的人手上，那么这个软体(指后门)-虽然现在还不存在-将会有可能被任何人取得资料。
The FBI may use different words to describe this tool, but make no mistake: Building a version of iOS that bypasses security in this way would undeniably create a backdoor. And while the government may argue that its use would be limited to this case, there is no way to guarantee such control.
FBI也许会用不同的方式来解读这个后门，但别搞错了：在开个后门对于安全性来说是毫无保障的。虽然说美国政府也许会辩称说这功能只限于调查这个case，但没有人有办法保证所有的情况都在控制之中。
The Threat to Data Security
资料安全性的威胁
Some would argue that building a backdoor for just one iPhone is a simple, clean-cut solution. But it ignores both the basics of digital security and the significance of what the government is demanding in this case.
有些人或许会辩称说在iPhone上建个后门是一个简单、正确的事。这些人都忽略了数位资料的安全性，以及政府在这件事上提出要求所代表的意义。
In today’s digital world, the key to an encrypted system is a piece of information that unlocks the data, and it is only as secure as the protections around it. Once the information is known, or a way to bypass the code is revealed, the encryption can be defeated by anyone with that knowledge.
在现今的数位世界中，进入加密系统的「钥匙」是可以解锁资料的一串资讯，而这钥匙必须跟资料本身一样安全。一旦这个钥匙被知道了，或是打开后门的方式被揭露了，所有知道这项资讯的人都可以轻易进出。
The government suggests this tool could only be used once, on one phone. But that’s simply not true. Once created, the technique could be used over and over again, on any number of devices. In the physical world, it would be the equivalent of a master key, capable of opening hundreds of millions of locks — from restaurants and banks to stores and homes. No reasonable person would find that acceptable.
政府表示这个工具只会被使用这一次，在这一只手机上。但这不是真的，一旦解密钥匙被创造出来，这个技术很容易就被一再地使用，用在各种机器上都可以。在真实世界中，就像打造了一把万能钥匙一样，可以开启数以百万计的门：从餐厅到银行保险箱、店铺到家里。没有任何理性的人会接受这样的事。
The government is asking Apple to hack our own users and undermine decades of security advancements that protect our customers — including tens of millions of American citizens — from sophisticated hackers and cybercriminals. The same engineers who built strong encryption into the iPhone to protect our users would, ironically, be ordered to weaken those protections and make our users less safe.
政府要求苹果入侵我们自己用户的机器，破坏了数十年来在资料安全上，为了保护顾客而发展的技术-影响所及，将是数百万的美国市民被狡奸巨猾的骇客到数位罪犯所威胁。而我们工程师为了保护资料安全所做的一切努力，很讽刺的，将白费了。
We can find no precedent for an American company being forced to expose its customers to a greater risk of attack. For years, cryptologists and national security experts have been warning against weakening encryption. Doing so would hurt only the well-meaning and law-abiding citizens who rely on companies like Apple to protect their data. Criminals and bad actors will still encrypt, using tools that are readily available to them.
美国从未有公司被迫要让自己的客户暴露在巨大的风险之下。这么多年来，密码专家还有资安专家都一再警告弱化加密技术所带来的危险。如果我们照美国政府所说的做了，受伤的将是所有善良、守法的市民，而这些人仰赖苹果保护着他们的资料。而罪犯们将会使用这些简直是为他们打造的工具来威胁这些好人们的安全。
A Dangerous Precedent
一个危险的先例
Rather than asking for legislative action through Congress, the FBI is proposing an unprecedented use of the All Writs Act of 1789 to justify an expansion of its authority.
与其在国会向立委们询问这件事，FBI选择用1789年的All Wrists Act来为其辩护。
The government would have us remove security features and add new capabilities to the operating system, allowing a passcode to be input electronically. This would make it easier to unlock an iPhone by brute force, trying thousands or millions of combinations with the speed of a modern computer.
政府要求我们移除安全性功能，并提供后门，这样iPhone 将会被暴力破解，百万计的密码组合在电脑面前，将会在几秒内被破解。
The implications of the government’s demands are chilling. If the government can use the All Writs Act to make it easier to unlock your iPhone, it would have the power to reach into anyone’s device to capture their data. The government could extend this breach of privacy and demand that Apple build surveillance software to intercept your messages, access your health records or financial data, track your location, or even access your phone’s microphone or camera without your knowledge.
政府的这项要求是令人不寒而栗的。如果政府用All Wrist Act 来要求我们解开你的iPhone，等于任何人都可以取的这些资料了。政府甚至可能扩大这项权利的解释而要求苹果制作监控软体来监控你的讯息、取得你的健康资料、财务资料、追踪你的位置，或什至在你不知情的情况下入侵你的手机相机或麦克风。
Opposing this order is not something we take lightly. We feel we must speak up in the face of what we see as an overreach by the U.S. government.
违反政府的命令并不是一件小事，我们认为有义务面对面跟美国政府表示，这个要求已经逾矩了。
We are challenging the FBI’s demands with the deepest respect for American democracy and a love of our country. We believe it would be in the best interest of everyone to step back and consider the implications.
我们反抗了FBI 的要求，是因为我们尊重美国的民主，而且爱着我们的国家。我们相信大家若能退一步思考这件事带来的后果会是最好的。
While we believe the FBI’s intentions are good, it would be wrong for the government to force us to build a backdoor into our products. And ultimately, we fear that this demand would undermine the very freedoms and liberty our government is meant to protect.
当然我们仍然相信FBI 的动机是好的，但要求我们建立后门这件事是错的。而我们最担心的，是这件事将威胁到我们的自由及安全-这些美国政府理当要守护的东西。
Tim Cook，February 16, 2016，原文A Message to Our Customers