There are legitimate and illegitimate uses. A legitimate use would be to log keystrokes for auditing purposes, like logging what people do in a sensitive environment. An illegitimate use would be to steal passwords, credit card numbers, PII data, etc.
In the legitimate use described above, there could be multiple purposes, most around improving security. (E.g., provide a mechanism for non-repudiation, identify process mistakes and training gaps, etc.). In the illegitimate use, the purpose is generally to get secret information.
Most anti viruses will block any application that tries to make a global hook to log keys. That said key loggers can be used positively e.g. For accessibility, for monitoring you kids activities etc.
A keylogger sole purpose is to keep tracks on every key you type. Most of the time the term is associated with malware or viruses. It would send the keys to a server for latter use by a "bad guy".
However, in a the context of a specific application, you may have to register a keyboard hook to get some information about the user input. In that case, you would be creating a specific application (keyboard-based quick-launcher, copy/paste monitor, whatever) not a keylogger. The difference is that getting the keyboard information is just a prerequisite not an end.
A keylogger records all the activities like keystroke, email, website, application, screenshot, CD-Rom, doc, USB drive, printer and chat message. It is usually used for employee monitoring, parental controls or other invisible computer monitoring.
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正如您提到的，键盘记录器会记录击键。
有合法和非法用途。合法用途是出于审计目的记录击键，例如记录人们在敏感环境中所做的事情。非法使用可能是窃取密码、信用卡号、PII 数据等。
在上述合法使用中，可能有多种目的，大多数是为了提高安全性。 （例如，提供不可否认的机制、识别流程错误和培训差距等）。在非法使用中，目的一般是获取秘密信息。
A keylogger logs keystrokes as you mention.
There are legitimate and illegitimate uses. A legitimate use would be to log keystrokes for auditing purposes, like logging what people do in a sensitive environment. An illegitimate use would be to steal passwords, credit card numbers, PII data, etc.
In the legitimate use described above, there could be multiple purposes, most around improving security. (E.g., provide a mechanism for non-repudiation, identify process mistakes and training gaps, etc.). In the illegitimate use, the purpose is generally to get secret information.
大多数防病毒软件都会阻止任何尝试创建全局挂钩来记录密钥的应用程序。也就是说，键盘记录器可以被积极使用，例如用于可访问性、监控孩子的活动等。
Most anti viruses will block any application that tries to make a global hook to log keys. That said key loggers can be used positively e.g. For accessibility, for monitoring you kids activities etc.
键盘记录器的唯一目的是跟踪您键入的每个键。大多数时候，该术语与恶意软件或病毒相关。它将密钥发送到服务器以供“坏人”稍后使用。
但是，在特定应用程序的上下文中，您可能必须注册键盘挂钩才能获取有关用户输入的一些信息。在这种情况下，您将创建一个特定的应用程序（基于键盘的快速启动器、复制/粘贴监视器等）而不是键盘记录器。不同的是，获取键盘信息只是前提而不是目的。
A keylogger sole purpose is to keep tracks on every key you type. Most of the time the term is associated with malware or viruses. It would send the keys to a server for latter use by a "bad guy".
However, in a the context of a specific application, you may have to register a keyboard hook to get some information about the user input. In that case, you would be creating a specific application (keyboard-based quick-launcher, copy/paste monitor, whatever) not a keylogger. The difference is that getting the keyboard information is just a prerequisite not an end.
键盘记录器记录所有活动，如击键、电子邮件、网站、应用程序、屏幕截图、CD-Rom、文档、USB 驱动器、打印机和聊天消息。它通常用于员工监控、家长控制或其他隐形计算机监控。
A keylogger records all the activities like keystroke, email, website, application, screenshot, CD-Rom, doc, USB drive, printer and chat message. It is usually used for employee monitoring, parental controls or other invisible computer monitoring.