Users typically use simple passwords. This is what computer attackers use. They calculate the password necessary for penetrating the network by selection.
Now encryption is a hot topic in security, just like many times in the past few decades. Most of the latest surge in interest in cryptography and encryption was due to Edward Snowden’s revelations regarding methods and tools.
Encryption was originally used only for the transfer of confidential information. However, subsequently the information was encrypted for the purpose of storing it in unreliable sources.
Over the past few years we have heard about the smartphone encryption – this is an area where the details matter. Drive Encryption date back at least to the beginning of 1990 – ies. The actual encryption can be done in one of two different ways (Full Disk Encryption (FDE) system based on encryption file (NEP) system). Most of the software for commercial PC disk encryption historically decided to use the approach, full disk encryption (FDE). Basically it’s just a question of expediency: FDE simply much easier to implement.