The cloud is actually a remote, external server, professionally managed and secured. That means that if your company is attacked, the cloud is safe from attacks.
1- The highest security: an attack on your company does not affect the cloud backups at all. Data in the cloud is backed up and secured by the most advanced systems.
2- Scalability: very easily and quickly you can go from having backups of one PC, to having backups of 3, 5, 10 or whatever is necessary.
3- Disaster recovery: Thanks to point 1, you can recover data in case of local disasters (fires, floods, or destruction of computer equipment for other reasons), or due to theft.