Where Was the Key? — TechKnowSurge

About this interactive

If a backup holds sensitive data, encrypt it, in case the copy ever gets out. Most backup software can encrypt the data before it is written to the media. The lesson's warning comes next. Say the encrypted backup is on removable media in an off-site location, and a fire destroys the data center. To restore, you need the key. If the key was only in the data center, the backup cannot be opened. So store the keys off site as well, and make sure you can actually restore the encrypted backup. Keep them apart from the media too: a key stored with the backup protects nothing if both are stolen together.

What you'll learn

Predict whether a backup's data is exposed, unrecoverable, or protected and restorable, from whether it was encrypted and where its key was kept

Aligned to

CompTIA Security+

3.4 Explain the importance of resilience and recovery in security architecture.

Key terms

Backup Encryption Key: A cryptographic key used to encrypt and decrypt backup data, which must be stored securely offsite to ensure successful data restoration.
Encryption: The process of converting readable data into an unreadable format using an algorithm and key to prevent unauthorized access.
Key Management: The administration of cryptographic keys throughout their lifecycle, including generation, storage, distribution, and destruction, to ensure secure cryptographic operations.

Topics

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