Virtualbox 6.1 Extension Pack Better -

Allows you to encrypt virtual disk images using AES algorithm.

Operates independently of the guest operating system's native remote desktop software, functioning even during text-only boot sequences. 3. Hardware-Level Disk Encryption 1.5. Installing Oracle VM VirtualBox and Extension Packs virtualbox 6.1 extension pack

In VirtualBox: File → Preferences (or Tools → Extension Pack Manager on some platforms). Allows you to encrypt virtual disk images using

: Provides transparent AES encryption (128-bit or 256-bit) for virtual disk images, ensuring data security even if the VM files are copied to unauthorized locations. virtualbox 6.1 extension pack

However, note that the base VirtualBox package (without the Extension Pack) remains GPL-licensed and can be used commercially indefinitely. Many businesses simply forgo USB 3.0 or use alternative solutions to avoid licensing costs.