What is the "Harvest Now, Decrypt Later" (HNDL)?
“Harvest Now, Decrypt Later” is a significant concern in the realm of quantum threats. Adversaries employing this strategy are not selective about the data they harvest; they accumulate all possible encrypted data, even seemingly inconsequential bits of information. The anticipation is that, with future advancements in quantum computing and the ability to run algorithms that can crack current asymmetric encryption methods, they will be able to decrypt this stored data. This strategy is particularly alarming as it allows adversaries to decrypt not only the harvested data but also any future data transmitted using the same encryption keys, posing a substantial risk to data security across various sectors.