Although the systems are backed up, it is not always possible to provide the desired returning times (RTO) or points (RPO).
Despite of RPO and RTO of backups are sufficient for some organizations, these backups are not enough in case of serious problems in systems.
It is not always necessary to think of fire, flood, earthquake etc. when it comes to disaster. Even in America where many storms and disasters are being experienced each year, the rate of service interruption by these events are only 5%.
It is more likely that the system interruption and data lost occurred due to the reasons such as user errors, malicious user attacks, ransomware and even system updates.
Researches revealed that against these kinds of disasters, the companies having data loss are damaged in terms of money and image, as well as forced to go out of business in three-five years.