La nueva amenaza es un virus informático del tipo ransomware [secuestrador de datos] denominado Netwalker, según detallan fuentes policiales. Este actúa bloqueando todos los archivos del equipo informático para, a continuación, lanzar un mensaje en el que exige el pago de un rescate para el desbloqueo de los mismos.

National Police detected an attempt to lock down the hospital's computers with a "very dangerous" computer virus in emails pretending to contain information about COVID-19, as told by police chief J. A. G.

The new threat is a computer virus of type ransomware called _Netwalker_, as told by police sources. This virus works locking access to all files in a computer and then asking for a ransom to unlock the files.

It goes on to give a generic explanation of ransomware, but there doesn't seem to be much more technical detail in the article.