IndexDescriptionThe attackWho initiated it?Who is at risk?How can it be stopped?What can we learn from this?Future preventionFirst, a data breach or security breach data is an incident in which sensitive, proprietary, or confidential information is viewed, stolen, or used by an unauthorized third party. This form of crime can both cause material damage, for example sabotage computer systems. It can also lead to a violation of property rights, such as theft of source codes, customer data, or other information. Furthermore, it could affect entire business systems of an enterprise-level company. The most common data theft scenario is a hacker attack penetrating a company's network. According to Antonucci (2017) data breaches occur daily in most places; Cyber ​​attacks have highlighted the growing vulnerabilities of personal information. In particular, additional tools used by government hackers have been released, making it easier for them to employ sophisticated means to steal corporate data, spread malware or ransomware. Undoubtedly, many companies often fail to update their security breaches in a timely manner. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay As more and more businesses come online, criminals realize the value of the data that is protected by organizations. In case of ransomware, hackers demand money before unlocking files and it is becoming more and more common. Examples of 21st century information and communications technology breaches include; the 2017 Want Cry attack, the 2014 eBay attack, the Yahoo Mail attack, and many more. Statistically, an analysis by an antivirus company found that ransomware payouts reached over $2 billion in 2017. Other analyzes suggest that compromised computer-related assets will exceed $10 billion in the next year. Therefore, this study highlights some common data breaches in recent history.DescriptionPrecisely, WannaCry ransomware is a worm that has rapidly spread across various computer networks since May 2017. Following an infection via Windows computers, the worm encrypts files on the computer's hard drive, making it difficult for users to access files for fear of paying a ransom in terms of Bitcoin for decryption. Several factors contributed to the primary attack of the WannaCry virus as it affected several important and sophisticated systems such as the UK National Health Service. Furthermore, it exposed a vulnerability in Windows that is suspected to have been initially discovered by the NSA (United States Security Agency). The attack The ransomware began on May 12th affecting computer systems and holds the computer hostage with the data trapped inside it, although experts say it is a virus it was the largest attack of its kind. Over 200,000 computers were hit by the rapid ransom attack spread with hackers demanding $300 per computer. The attack crippled computer systems in at least 150 countries around the world, although experts predict there are chances of more similar attacks in the near future. Who started it? Occasionally, suspects are still anonymous pending investigation, but researchers claim the link to North Korean hackers, of course, this needs to be proven. Furthermore, it has been cautiously associated with Symantec and other security research from the Lazarus group; a cybercrime organization suspected of originating from?.