Training Video | Cryptography

Cryptography protects information by turning it into code that only someone holding the right key can read, and it applies to data at rest and data in transit.

Key concepts

• Encryption scrambles readable data into ciphertext, and decryption reverses it for whoever holds the correct key.
• Data at rest means stored information: files, laptops, phones, backups, and databases sitting on disk.
• Data in transit means information moving across a network, such as email, file transfers, or web traffic.
• The secret is the key, not the method, so favor proven public algorithms over homemade ones.
• Encryption is only as strong as your key handling, so store, restrict, and rotate keys carefully.

Why it matters for your business

Encryption is often the last control still standing when a laptop goes missing or a backup drive is stolen. It turns a potential disclosure into a far smaller problem, because the data stays unreadable to whoever ends up holding it. The trade-off is that lost keys mean lost data, so key management deserves as much planning as the encryption itself. Applying all of this consistently across servers, storage, and backups takes careful configuration, and our managed cloud services team can help you cover your whole environment.