1. 恶意软件：
恶意软件是一个总称，用于涵盖所有类型的恶意软件。恶意软件旨在通过破坏数据和资源、导致错误和降低性能来攻击组织、公司和个人。恶意软件可以通过电子邮件或软件安装或通过互联网冲浪传送到网络系统。病毒、特洛伊木马、蠕虫和间谍软件是恶意软件的类型，以及其他一些危害更大的恶意软件。
2. 间谍软件：
间谍软件是一种执行某些任务的恶意软件，包括监视和跟踪用户操作以及收集个人数据。间谍软件程序通常安装在用户计算机上，并通过在用户不知情的情况下收集用户数据来向第三方提供利润。此外，间谍软件通过在系统后台运行来窃取用户的密码和个人信息。
恶意软件和间谍软件的区别：
| S.No. | Malware | Spyware |
|---|---|---|
| 1. | Malware is a file or a code, designed to cause damage to a user’s personal computer and network. | Spyware is a form of malware designed to collect your personal information. |
| 2. | Malware covers a lot of different malicious software | Spyware is one of the type of malware. |
| 3. | Malware is more harmful than spyware. | Spyware is less harmful than Malware |
| 4. | Malware can replicate itself and makes duplicate copy of it. | While, spyware can not self-replicate |
| 5. | Malware can be detected and removed by the antivirus program. | Spyware can be detected and removed by the antispyware program. |
| 6. | It can destroy data and resources, cause error and slow down the performance. | It provides profit to the third party by collecting data of user without his awareness. |