What happens to data when it is encrypted?

Question

Data encryption converts data from a readable, plaintext format into an unreadable, encoded format: ciphertext. Users and processes can only read and process encrypted data after it is decrypted. The decryption key is secret, so it must be protected against unauthorized access.

Does encrypting delete everything?

Drive encryption programs do not erase the data on volumes they have been turned on on. They will encrypt all the data, which can take some time depending on the type of encryption, the amount of data to be encrypted, the speed of the drive and system, and many other factors.

Can encrypted data be decrypted?

Encrypted data can be hacked or decrypted with enough time and computing resources, revealing the original content. Hackers prefer to steal encryption keys or intercept data before encryption or after decryption. The most common way to hack encrypted data is to add an encryption layer using an attacker's key.

What happens when data is not encrypted?

If the data is not encrypted and only HTTPS is in place, the data is in readable form before being sent further inside the private network protected by a firewall. Operators of the firewall can intercept, change or manipulate the data.

Can encrypted data be read?

Encrypted data can only be read or processed after it's been decrypted. Encryption is the basic building block of data security. It is the simplest and most important way to ensure a computer system's information can't be stolen and read by someone who wants to use it for malicious purposes.

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