1. 恐吓软件：
恐吓软件是一种恶意软件，它伪装成合法的计算机安全软件，并声称可以检测受影响计算机上实际上并不存在的各种威胁。然后，用户会被告知他们必须购买恐吓软件才能修复他们的计算机，并且会收到咄咄逼人的弹出通知，直到他们提供信用卡号并为毫无价值的恐吓软件产品支付所需的金额。
2. 间谍软件：
间谍软件是一种恶意软件，可以执行某些工作，包括监视和跟踪用户操作以及收集个人数据。间谍软件程序通常将自己安装在系统上，并在未经系统用户同意的情况下通过收集系统用户的数据向第三方提供利润。恶意间谍软件还试图通过在系统后台运行来捕获用户的密码和个人信息。
恐吓软件和间谍软件的区别：
| S.No. | Scareware | Spyware |
|---|---|---|
| 1. | Scareware is a tool to help fix your system but when the software is executed it will infect your system or completely destroy it. | Spyware is a form of malware designed to collect your personal information. |
| 2. | It is less harmful as compared. | It is more harmful. |
| 3. | Scareware can be detected in browser by pop up notification and removed by the Antivirus and firewall. | Spyware can be detected and removed by the antispyware program. |
| 4. | It give unauthorized access and control of the system to the hackers. | It provides profit to the third party by collecting data of user without his awareness. |
| 5. | Scareware is one of the type of malware. | Spyware is also one of the type of malware. |
| 6. | It displays windows – style popups. | It displays a software. |
| 7. | In this, user should immediately close the browser. | In this, user should restore the PC to gain access. |
| 8. | DriveCleaner, WinAntivirus, ErrorSafe, WinFixer and XP Antivirus are some of the examples of scareware. | Bonzibuddy, Cydore and Downloadware are some examples of spyware |