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What does full disk encryption prevent?
Full disk encryption, also known as whole disk encryption, protects data that’s at rest on a computer or phone, as opposed to email and instant messaging data that’s in transit across a network.
What does full disk encryption do?
Whole disk encryption encrypts the entire disk including swap files, system files, and hibernation files. If an encrypted disk is lost, stolen, or placed into another computer, the encrypted state of the drive remains unchanged, and only an authorized user can access its contents.
Is full disk encryption slow?
The truth of the matter is that if you encrypt your entire C drive using Windows BitLocker or a third party utility, it’s going to slow your system down quite a bit. Constantly encrypting and decrypting files requires processing by the CPU, which takes time.
Is it possible to bypass encryption on a SSD?
Most modern operating systems provide software encryption that allows a user to perform whole disk encryption. While software decryption offered by Linux, macOS, Android, and iOS offer strong software encryption, BitLocker on Windows falls prey to the SSD flaw by defaulting to hardware encryption when available.
Are there any flaws in the SSD drive?
Researchers have found flaws that can be exploited to bypass hardware decryption without a password in well known and popular SSD drives.
When to use BitLocker to encrypt a disk in Windows?
When using BitLocker to encrypt a disk in Windows, if the operating system detects a SSD drive with hardware encryption, it will automatically default to using it. This allows drives encrypted by BitLocker using hardware encryption to be decrypted by the same flaws discussed above.
How to prevent the use of hardware encryption?
In order to prevent the use of SSD hardware encryption, the researchers suggest that users disable its use using a Windows Group Policy at “Computer Configuration\\Administrative Templates\\Windows Components\\BitLocker Drive Encryption\\Operating System Drives” called “Configure use of hardware-based encryption for operating system drives”.