The key purpose behind cybercriminality is to gain money. Extortion has always been a successful and preferred method to achieve this. Ransomware is merely a means of extortion. Its success is illustrated by the continuous growth of ransomware attacks over many years.
The evolution of ransomware has not been static. Its nature has changed as the criminals have refined the approach to improve the extortion, and the volume (generally upward) has ebbed and flowed in reaction to market conditions. The important point, however, is that criminals are not married to encryption, they are married to extortion.
