What method is used to protect data in use, such as when it exists in memory, preventing untrusted processes from accessing it?

The method utilized to protect data in use, especially when it resides in memory and needs safeguarding from untrusted processes, is Software Guard Extensions (SGX). This technology, developed by Intel, creates secure enclaves in memory, allowing sensitive data to be processed in isolation from other applications and processes that may not be trusted. By leveraging SGX, developers can ensure that even if an application is compromised, the data within the secure enclave remains protected from unauthorized access.

BitLocker is primarily a full disk encryption solution that protects data at rest by encrypting the entire disk drive. This means that while it secures data when the system is powered off or in sleep mode, it does not address the specific issue of securing data while it is actively being utilized in memory.

TLS, or Transport Layer Security, is a protocol used to secure communications over a network by encrypting data in transit, but it does not provide protection for data residing in memory during processing.

IPSec is a suite of protocols intended for securing internet protocol communications by authenticating and encrypting each IP packet in a communication session. Similar to TLS, it focuses on data in transit rather than data that is actively being processed in memory.

SGX stands out as the solution specifically designed for protecting data