diff --git a/06-information-security-and-quality-assurance/information-security-with-helmetjs.json b/06-information-security-and-quality-assurance/information-security-with-helmetjs.json
index bfc897b..6eda557 100644
--- a/06-information-security-and-quality-assurance/information-security-with-helmetjs.json
+++ b/06-information-security-and-quality-assurance/information-security-with-helmetjs.json
@@ -8,12 +8,12 @@
       "id": "587d8247367417b2b2512c36",
       "title": "Install and Require Helmet",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
-        "Helmet helps you secure your Express apps by setting various HTTP headers. Install the package, then require it."
+        "注意，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
+        "Helmet 通过配置不同的 HTTP 头部信息来使你的 Express 应用更加安全。安装，并引入 Helmet 这个包。"
       ],
       "tests": [
         {
-          "text": "\"helmet\" dependency should be in package.json",
+          "text": "package.json 文件应该有 \"helmet\" 这个依赖包",
           "testString": "getUserInput => $.get(getUserInput('url') + '/_api/package.json').then(data => { var packJson = JSON.parse(data); assert.property(packJson.dependencies, 'helmet'); }, xhr => { throw new Error(xhr.responseText); })"
         }
       ],
@@ -26,12 +26,12 @@
       "id": "587d8247367417b2b2512c37",
       "title": "Hide Potentially Dangerous Information Using helmet.hidePoweredBy()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
-        "Hackers can exploit known vulnerabilities in Express/Node if they see that your site is powered by Express. X-Powered-By: Express is sent in every request coming from Express by default. The helmet.hidePoweredBy() middleware will remove the X-Powered-By header. You can also explicitly set the header to something else, to throw people off. e.g. app.use(helmet.hidePoweredBy({ setTo: 'PHP 4.2.0' }))"
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
+        "如果黑客发现你的网站是用 Express 搭建的，那么他们就可以利用 Express 或 Node 现存的漏洞来攻击你的网站。<code>X-Powered-By: Express</code> 默认情况下会被添加到所有响应的头部。不过 helmet.hidePoweredBy() 中间件可以帮你移除 X-Powered-By 头。你甚至可以把头设置成其它的值。 如 <code>app.use(helmet.hidePoweredBy({ setTo: 'PHP 4.2.0' }))</code>"
       ],
       "tests": [
         {
-          "text": "helmet.hidePoweredBy() middleware should be mounted correctly",
+          "text": "helmet.hidePoweredBy() 中间件应该被正确加载",
           "testString": "getUserInput => $.get(getUserInput('url') + '/_api/app-info').then(data => { assert.include(data.appStack, 'hidePoweredBy'); assert.notEqual(data.headers['x-powered-by'], 'Express')}, xhr => { throw new Error(xhr.responseText); })"
         }
       ],
@@ -44,17 +44,17 @@
       "id": "587d8247367417b2b2512c38",
       "title": "Mitigate the Risk of Clickjacking with helmet.frameguard()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
-        "Your page could be put in a <frame> or <iframe> without your consent. This can result in clickjacking attacks, among other things. Clickjacking is a technique of tricking a user into interacting with a page different from what the user thinks it is. This can be obtained executing your page in a malicious context, by mean of iframing. In that context a hacker can put a hidden layer over your page. Hidden buttons can be used to run bad scripts. This middleware sets the X-Frame-Options header. It restricts who can put your site in a frame. It has three modes: DENY, SAMEORIGIN, and ALLOW-FROM.",
-        "We don’t need our app to be framed. You should use helmet.frameguard() passing with the configuration object {action: 'deny'}."
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
+        "黑客可能会不经过你的允许，把你的页面嵌套在 <frame> 或者 <iframe> 标签里，用以实现“点击劫持”。点击劫持是一种视觉上的欺骗手段，让用户误以为自己在与所看到的网页交互。通过 iframe，黑客可以在你的页面上添加一个透明的“层”，然后把自己的恶意代码放在一个用户看不到的按钮中。这样一来，你网站的执行环境就被黑客设置成了他想要的效果。helmet 中间件可以设置 X-Frame-Options 这个头部。这样就能限制谁可以通过 iframe 引入你的页面了。 有三个模式可供配置: DENY, SAMEORIGIN, 和 ALLOW-FROM.",
+        "我们的应用不需要被 iframe 引用。你可以调用 <code>helmet.frameguard()</code> 这个方法，然后传入配置对象  <code>{action: 'deny'}</code> 就可以了。"
       ],
       "tests": [
         {
-          "text": "helmet.frameguard() middleware should be mounted correctly",
+          "text": "helmet.frameguard() 中间件应该被正确加载",
           "testString": "getUserInput => $.get(getUserInput('url') + '/_api/app-info').then(data => { assert.include(data.appStack, 'frameguard', 'helmet.frameguard() middleware is not mounted correctly'); }, xhr => { throw new Error(xhr.responseText); })"
         },
         {
-          "text": "helmet.frameguard() 'action' should be set to 'DENY'",
+          "text": "<code>helmet.frameguard()</code> 中的 <code>action</code> 属性的值应该为 'DENY'",
           "testString": "getUserInput => $.get(getUserInput('url') + '/_api/app-info').then(data => { assert.property(data.headers, 'x-frame-options'); assert.equal(data.headers['x-frame-options'], 'DENY');}, xhr => { throw new Error(xhr.responseText); })"
         }
       ],
@@ -67,7 +67,7 @@
       "id": "587d8247367417b2b2512c39",
       "title": "Mitigate the Risk of Cross Site Scripting (XSS) Attacks with helmet.xssFilter()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "Cross-site scripting (XSS) is a frequent type of attack where malicious scripts are injected into vulnerable pages, with the purpose of stealing sensitive data like session cookies, or passwords.",
         "The basic rule to lower the risk of an XSS attack is simple: “Never trust user’s input”. As a developer you should always sanitize all the input coming from the outside. This includes data coming from forms, GET query urls, and even from POST bodies. Sanitizing means that you should find and encode the characters that may be dangerous e.g. <, >.",
         "Modern browsers can help mitigating the risk by adopting better software strategies. Often these are configurable via http headers.",
@@ -89,7 +89,7 @@
       "id": "587d8248367417b2b2512c3a",
       "title": "Avoid Inferring the Response MIME Type with helmet.noSniff()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "Browsers can use content or MIME sniffing to adapt to different datatypes coming from a response. They override the Content-Type headers to guess and process the data. While this can be convenient in some scenarios, it can also lead to some dangerous attacks. This middleware sets the X-Content-Type-Options header to nosniff. This instructs the browser to not bypass the provided Content-Type."
       ],
       "tests": [
@@ -107,7 +107,7 @@
       "id": "587d8248367417b2b2512c3b",
       "title": "Prevent IE from Opening Untrusted HTML with helmet.ieNoOpen()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "Some web applications will serve untrusted HTML for download. Some versions of Internet Explorer by default open those HTML files in the context of your site. This means that an untrusted HTML page could start doing bad things in the context of your pages. This middleware sets the X-Download-Options header to noopen. This will prevent IE users from executing downloads in the trusted site’s context."
       ],
       "tests": [
@@ -125,7 +125,7 @@
       "id": "587d8248367417b2b2512c3c",
       "title": "Ask Browsers to Access Your Site via HTTPS Only with helmet.hsts()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "HTTP Strict Transport Security (HSTS) is a web security policy which helps to protect websites against protocol downgrade attacks and cookie hijacking. If your website can be accessed via HTTPS you can ask user’s browsers to avoid using insecure HTTP. By setting the header Strict-Transport-Security, you tell the browsers to use HTTPS for the future requests in a specified amount of time. This will work for the requests coming after the initial request.",
         "Configure helmet.hsts() to use HTTPS for the next 90 days. Pass the config object {maxAge: timeInMilliseconds, force: true}. Glitch already has hsts enabled. To override its settings you need to set the field \"force\" to true in the config object. We will intercept and restore the Glitch header, after inspecting it for testing.",
         "Note: Configuring HTTPS on a custom website requires the acquisition of a domain, and a SSL/TSL Certificate."
@@ -149,7 +149,7 @@
       "id": "587d8248367417b2b2512c3d",
       "title": "Disable DNS Prefetching with helmet.dnsPrefetchControl()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "To improve performance, most browsers prefetch DNS records for the links in a page. In that way the destination ip is already known when the user clicks on a link. This may lead to over-use of the DNS service (if you own a big website, visited by millions people…), privacy issues (one eavesdropper could infer that you are on a certain page), or page statistics alteration (some links may appear visited even if they are not). If you have high security needs you can disable DNS prefetching, at the cost of a performance penalty."
       ],
       "tests": [
@@ -167,7 +167,7 @@
       "id": "587d8249367417b2b2512c3e",
       "title": "Disable Client-Side Caching with helmet.noCache()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "If you are releasing an update for your website, and you want the users to always download the newer version, you can (try to) disable caching on client’s browser. It can be useful in development too. Caching has performance benefits, which you will lose, so only use this option when there is a real need."
       ],
       "tests": [
@@ -185,7 +185,7 @@
       "id": "587d8249367417b2b2512c3f",
       "title": "Set a Content Security Policy with helmet.contentSecurityPolicy()",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "This challenge highlights one promising new defense that can significantly reduce the risk and impact of many type of attacks in modern browsers. By setting and configuring a Content Security Policy you can prevent the injection of anything unintended into your page. This will protect your app from XSS vulnerabilities, undesired tracking, malicious frames, and much more. CSP works by defining a whitelist of content sources which are trusted. You can configure them for each kind of resource a web page may need (scripts, stylesheets, fonts, frames, media, and so on…). There are multiple directives available, so a website owner can have a granular control. See HTML 5 Rocks, KeyCDN for more details. Unfortunately CSP is unsupported by older browser.",
         "By default, directives are wide open, so it’s important to set the defaultSrc directive as a fallback. Helmet supports both defaultSrc and default-src naming styles. The fallback applies for most of the unspecified directives. In this exercise, use helmet.contentSecurityPolicy(), and configure it setting the defaultSrc directive to [\"self\"] (the list of allowed sources must be in an array), in order to trust only your website address by default. Set also the scriptSrc directive so that you will allow scripts to be downloaded from your website, and from the domain 'trusted-cdn.com'.",
         "Hint: in the \"'self'\" keyword, the single quotes are part of the keyword itself, so it needs to be enclosed in double quotes to be working."
@@ -209,7 +209,7 @@
       "id": "587d8249367417b2b2512c40",
       "title": "Configure Helmet Using the ‘parent’ helmet() Middleware",
       "description": [
-        "As a reminder, this project is being built upon the following starter project on <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>Glitch</a>, or cloned from <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a>.",
+        "温馨提醒，本项目在 <a href='https://glitch.com/#!/import/github/freeCodeCamp/boilerplate-infosec/'>这个 Glitch 项目</a> 的基础上进行开发。你也可以从 <a href='https://github.com/freeCodeCamp/boilerplate-infosec/'>GitHub</a> 上克隆。",
         "app.use(helmet()) will automatically include all the middleware introduced above, except noCache(), and contentSecurityPolicy(), but these can be enabled if necessary. You can also disable or configure any other middleware individually, using a configuration object.",
         "// Example",
         "<code>app.use(helmet({</code>",