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. 勒索软件：
勒索软件是一种恶意软件，旨在阻止用户访问自己的系统，直到向勒索软件创建者支付赎金为止。勒索软件比普通恶意软件危险得多，它通过带有受感染附件的网络钓鱼电子邮件进行传播。勒索软件在过去几年出现，可以攻击个人或组织。
恐吓软件和勒索软件的区别：
| S.No. | Scareware | Ransomware |
|---|---|---|
| 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. | Ransomware is a form of malware designed to block access from system until a ransom fee is paid. |
| 2. | The main objective of scareware is to frighten people into purchasing or installing the software. | The main objective of ransomware is to take money by gaining access. |
| 3. | As it is a scam, your computer is safe. | This is unsafe with various degrees of seriousness. |
| 4. | In this, user should immediately close the browser. | In this, user should restore the PC to gain access. |
| 5. | It displays windows – style popups. | It displays a software. |
| 6. | It downloads malware to your computer. | It locks your computer and makes it unusable. |
| 7. | Recovery includes running a full scan with an updated antivirus software. | Recovery includes restoring the PC. |
| 8. | It steals your data. | It locks your computer and encrypts your personal data for ransom. |
| 9. | DriveCleaner, WinAntivirus, ErrorSafe, WinFixer and XP Antivirus are some of the examples of scareware. | Crypto, Wanna Cry, Cerber and locker are some of the examples of Ransomwares. |
| 10. | It is less harmful as compared. | It is more harmful. |
| 11. | It give unauthorized access and control of the system to the hackers. | It provides profit to the ransomware programmers by getting money from user for unlocking the system. |