Encryption is the process of converting data into a code so it can only be read with the correct key.
Why it matters:
- Protects sensitive data (like financial transactions, medical records, or personal info).
- Even if attackers steal encrypted files, they can’t read them without the key.
- Used in HTTPS, VPNs, and secure messaging apps.
Pro tip: Make sure encryption is enabled on laptops and mobile devices — it protects data if the device is lost or stolen.
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