Last May 12 the biggest ransomware attack called WannaCry occurred in over 150 countries. The attack hits hospitals, banks, telecommunications companies, warehouses and other organizations.
A ransomware attack blocks your computer, lock your files and a message appears and demand payments to unlock them. Victims of these attacks only have three days to pay for the ransom or the ransom amount is doubled. WannaCry appears to affect only computers running Windows.
There's still no way to fix the attack completely. A Second wave of WannaCry emerged on May 15.
Two Vital Tips to protect your PC from this attack:
1) make sure your Windows PC is fully patched with latest updates
2) back up all your files to avoid more damage
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