What is Ransomware virus

Ransomware  ek tarha ka virus hai Jisene haalhe me bhout sare computer KO effect kiya hai ye virus it a dangerous h ki agar yeh virus ek baar aaapke computer par run ho gaya toh ye aapke computer ka Sare data KO encripted kar dega encription ka matlab hota h ki yeh aapke sare data ko password se lock kar dega or aapse data ko vaps lene ke badle me paise lene ki maag karega yeh ek bhout dangerous virus hai