What is Ransomware?
Ransomware is a malware that locks your computer data files and demands some ransom usually demanded in Bitcoin (a digital currency) to unlock the files. Ransomware doesn’t just affect desktop machines or laptops, it also targets mobile phones. The Android ransomware targets the Android users and allowed attackers to lock the phone and change users mobile PIN. 
How to Know System is Affected by Ransomware
There are two types of ransomware in circulation Encryption ransomware and Locker ransomware. Some ransomware can also infect the MBR partition of Windows operating system this cause failure of Windows boot and shows a ransom warning message.
The ransomware infected system shows a warning ransom message at interval period of time or warning message appeared at a particular task such as clicking on files etc.
The ransomware infected system shows a warning ransom message at interval period of time or warning message appeared at a particular task such as clicking on files etc.
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Which One is Mostly Target by Ransomware
Cyber-criminal thought companies and organizations are the most profitable than individual users. Because the locked data are very important and this may damage the company or organizations reputations. Recently WannaCry ransomware attack affects all the country. Millions of computer are locked and demanded ransom in Bitcoin.How to Secure from Ransomware and Viruses
- Avoid clicking a malicious link in website, popups or emails.
- Use the latest version of antivirus program on your PC and scan periodically for treats.
- Don't open unknown emails this may be harmful files.
- Take a backup of sensitive data in secure place to avoid data loss.
- Avoid using open public WiFi networks. The cybercriminal steals the data or replace the downloading files easily.