overview of defense mechanisms against ransomware attacks: focus on data recovery systems

With the spread of ransomware and numerous financial losses and serious security threats, the fear of variousorganizations and institutions from being infected by these attacks increases .it is better that we stop aransomware attack before it enters the work environment. however, due to the uncertainty in the success ofthis matter, it is necessary to think of measures to deal with ransomware attacks in order to recover moreefficiently information after the attack many articles have been done in the field of detecting ransomwareattacks, so in this article we focus on data recovery and will review the proposed systems to reach this goal.