Ransomware is a type of malicious software that blocks user access to files or systems. Information Security experts say that the first ransomware attack was happened in 1989.
By 2017, it is everywhere. According to a report there were more than 7,600 ransomware attacks have been done in industry. But attacks are not finished yet, the latest ransomware attack “wanna cry” have happened in last week which affected millions of individuals and Corporates in over 150 countries. But it’s not only one which affected millions; there are many others of its family.
Ransomware install itself in computer and runs in the background without the user’s permission. It locks user machine and notifies user of its presence to make ransom demand but there is no guarantee after paying the ransom will return access or not delete the data. The more advanced malware uses a technique called cryptoviral extortion, in which it encrypts the victim’s files, making them inaccessible, and demands a ransom. The ransomware may also encrypt the computer’s Master File Table or the entire hard drive.
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