How WannaCry Spread Across the World

The WannaCry ransomware attack (2017) was one of the most widespread and damaging cyberattacks in history. It infected hundreds of thousands of computers across more than 150 countries within a short period.

WannaCry exploited a vulnerability in Microsoft Windows systems and quickly spread across networks, encrypting files and demanding payment in Bitcoin.

🔐 Key Concepts Covered

✔ What WannaCry ransomware is
✔ How the attack spread globally
✔ Use of the EternalBlue vulnerability
✔ Impact on hospitals, businesses, and organizations
✔ Ransom demand using cryptocurrency

💡 How WannaCry Worked

• Exploited Windows vulnerability
• Spread automatically across networks
• Encrypted files on infected systems
• Displayed ransom message demanding Bitcoin

🎯 What You Will Learn

✔ Causes and impact of the WannaCry attack
✔ How ransomware spreads
✔ Importance of system updates and patches
✔ Lessons for modern cybersecurity

The WannaCry attack highlighted the importance of regular updates, strong security practices, and advanced antivirus protection.

Perfect for students, cybersecurity learners, and professionals.

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