Blockchain networks utilizing Trusted Execution Environments (TEE) or similar trusted enclave solutions for confidential computing are facing new security threats. Two types of attacks, known as Battering RAM and Wiretap, exploit a small hardware component called an interposer. This device is placed between the CPU silicon chip and memory modules, allowing it to observe data transmitted between them. These attacks combine physical and man-in-the-middle tactics, posing a significant risk to blockchain networks. If a self-built node becomes a critical node within a blockchain network, it could facilitate such attacks, potentially compromising confidential data.