# Plundervolt *How a little bit of undervolting can cause a lot of problems* https://plundervolt.com/ - Discovered: 2020 - Mitigated: 2020 - Paper: [abstract](https://www.computer.org/csdl/proceedings-article/sp/2020/349700b149/1j2LgdvHlOo), [pdf](https://plundervolt.com/doc/plundervolt.pdf) - PoC videos: - [Faulting Multiplications](https://www.youtube.com/watch?v=1bvK532x3ys) - [Faulting AES inside SGX](https://www.youtube.com/watch?v=In3B9L5Jyo4) - [Memory Corruption inside SGX](https://www.youtube.com/watch?v=yo9B2ZRVW9Q) **What should affected users do?** If you do not use SGX, you do not need to do anything. If you do use SGX: Intel has released a microcode update that - together with a BIOS update - allows disabling of the undervolting interface. The fact that undervolting is disabled will be reflected in remote attestation. More information can be found in [Intel's security advisory.](https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00289.html)