What is a Self-Encrypting Drive (SED)?
A Self-Encrypting Drive (SED) is a storage device that automatically encrypts and decrypts data using hardware-based encryption built into the drive. It differs from well-known encryption methods, which require a bootup system for the encryption software to perform the encryption.
SED performs encryption within the drive controller itself, making it faster and more secure. Although it is faster and more secure, it runs automatically in the background, and most users are unaware of this. As a result, the data recovery process becomes extremely challenging.
In the current era, storage devices, laptops, desktops, NAS, and enterprise servers are increasingly utilizing SED.
How Does SED Work?
SED generates a unique Data Encryption Key (DEK) during manufacturing or initialization. This key is used to encrypt all data saved on the drive at the hardware level.
If the drive is removed from its original system or environment, it will become inaccessible even if you try to connect it to another computer.
The Benefits of Using SED
Encryption and decryption are performed automatically without the need for the user to insert any password. The DEK cannot be backed up or saved by the user. It protects it from exposure to hackers. Besides, it could improve the drive's performance. This hardware-level encryption minimizes processing delays and minimizes the use of operating system resources.
The Challenge faced by the Data Recovery Team from SED
While SED offers the best data security, it poses challenges as well.
A device with SED that was not handled property will causes it undecryptable. If the encryption key is lost or corrupted, the data cannot be decrypted or recovered, even if the physical drive is still healthy.
Apart from that, the SED is linked to the hardware component or the drive's firmware. Any changes to its environment could complicate the recovery process.
When Should You Contact a Professional?
If your storage device has failed, do not try any DIY solutions that require you to alter its hardware or use third-party tools that could change its firmware. This action might make it worse.
Instead, reach out to a professional data recovery centre to handle the drives.
Final Thoughts
SED are good for defense against data theft and hackers. However, when failure happens, SED makes the recovery data process much more complicated. SED requires people with advanced skills and experience to handle. Whether you're a business protecting sensitive client information or an individual with encrypted personal files, feel free to contact us EHDR for advice.
