Data under control before and after an incident
Data security, protection, backup and recovery
Important data needs protection in two directions: against unauthorized access and against loss, corruption or human error. I design permissions, encryption, secure storage and backup so data can be both protected and actually recovered.
Data protection does not end with a password or a backup
Good protection combines restricted access, encryption, separation of important copies and verified recovery. A successful backup job does not prove that data is complete and usable, while encryption does not solve user error or storage failure. The individual measures therefore need to work together.
What I can cover
- Access rights, groups and separation of sensitive data according to actual need
- Encryption of disks, datasets and backups with operational usability in mind
- Backup design for servers, virtual machines, working data and configuration
- Local, separated and remote copies according to data value and volume
- Retention rules, versioning and protection against accidental deletion or overwrite
- Monitoring of backup results and alerts for errors or unusual conditions
- Regular recovery tests for individual files and complete services
Where data protection commonly fails
- Sensitive data is available to more users than actually need it
- The backup is permanently connected and can be affected by the same incident as production data
- Backup jobs report success but recovery has never been tested
- Nobody knows how long recovery takes or what must be restored first
- Retention is too short for a late-discovered error, attack or data corruption
Protection based on data value and real risks
The first step is to identify which data is sensitive or critical, who really needs access, how much data loss is acceptable and how long an outage can last. Permissions, encryption, backup frequency, copy count, retention and capacity follow from those requirements.
The solution includes a documented and regularly verified recovery procedure. For important services, required credentials, decision responsibility and validation of the restored state should be clear.
Outcome
Data is not protected by a single measure. Access is restricted, sensitive content can be encrypted, backups are separated and there is a verified path back after an error, failure or attack.