WannaCry Ransomware

Ransomware WannaCry is a highly destructive and widespread malware attack that has caused significant disruptions to global computer systems and networks. This malicious software, also known as WannaCrypt, was first detected in May 2017 and quickly spread to over 200,000 computers in more than 150 countries, affecting hospitals, banks, and other critical infrastructure. The malware exploited a vulnerability in Microsoft's Windows operating system, known as EternalBlue, which was previously discovered by the National Security Agency (NSA) and leaked online by a group of hackers. The WannaCry malware encrypts files on infected computers and demands a ransom payment in Bitcoin in exchange for the decryption key. The attack was particularly devastating due to its rapid spread and the lack of effective defenses against it. The malware's code was designed to spread quickly, exploiting vulnerabilities in older versions of Windows and using a worm-like behavior to infect other computers on the same network. The attack highlighted the importance of timely software updates, robust cybersecurity measures, and international cooperation in responding to and mitigating the impact of such attacks.