It will never stop if hackers monetize the attacks.
Cybersecurity experts consider paying ransom an irresponsible practice. Even if we are sure that other victims of a specific threat regained access to the data after paying the ransom, it may turn out that the hackers have abandoned their project and no longer want to distribute decryption codes. Therefore, even if we have the right antivirus package, we should create backups as often as possible – in companies, this should be the absolute norm. In-home applications, it is also worth ensuring that our copies contain the most up-to-date information possible – the scale of damage caused by ransomware mainly depends on this.

https://www.itproportal.com/news/garmin-paid-for-wastedlocker-ransomware-decryption-key/