Secure the information means :
- Confidentiality, keeping the information confidential and giving access to only those who need to work on it .
- Integrity, ensuring that no one has been able to access your information and change its content which means you can always rely on its accuracy.
- Availability, ensuring that you information is always available whenever you need it which can be achieved by making backups.
Confidentiality , Integrity and Availability are the three principles that should be guaranteed on any secure system.