The security vulnerability of the Vadai, Mingesz, and Gingl (VMG) Kirchhoff-Law-Johnson-Noise (KLJN) key exchanger, as presented in the publication "Nature, Science Report 5 (2015) 13653," has been exposed to transient attacks. Recently an effective defense protocol was introduced (Appl. Phys. Lett. 122 (2023) 143503) to counteract mean-square voltage-based (or mean-square current-based) transient attacks targeted at the ideal KLJN framework. In the present study, this same mitigation methodology has been employed to fortify the security of the VMG-KLJN key exchanger. It is worth noting that the protective measures need to be separately implemented for the HL and LH scenarios. This conceptual framework is corroborated through computer simulations, demonstrating that the application of this defensive technique substantially mitigates information leakage to a point of insignificance.

翻译：Vadai、Mingesz与Gingl三人提出的基尔霍夫定律-约翰逊噪声密钥交换器（简称VMG-KLJN），其安全漏洞在《自然·科学报告》第5卷（2015年）13653页的论文中被揭示存在瞬态攻击风险。近期一项有效防御协议（《应用物理快报》第122卷（2023年）143503页）已被提出，用以抵御针对理想KLJN框架的基于均方电压（或均方电流）的瞬态攻击。本研究采用相同的缓解方法加固VMG-KLJN密钥交换器的安全性。值得注意的是，该防护措施需针对高电平（HL）与低电平（LH）两种场景分别实施。通过计算机仿真验证了这一概念框架，结果表明应用该防御技术可有效将信息泄漏降至可忽略不计的水平。