Yo team — something everyone on Evil Source needs to have on their radar because it's not just theory anymore; quantum computers are coming and they will break our encryption within this decade. Dark Reading laid out what meeting the 2030 deadline looks like, and let me tell you: expensive and complicated is an understatement. NIST has been rolling out post-quantum cryptography (PQC) standards since 2016 with a rollout that goes through late 2024/early 2025, which means the transition window for IT and OT systems is already closing fast. The real threat isn't just future decryption — it's harvest now decrypt later attack, where adversaries are logging today's encrypted traffic to crack once a cryptographically relevant quantum computer exists. We can estimate that could be anywhere from 5 to 10 years out, which gives critical infrastructure organizations exactly zero time left to migrate their most sensitive systems before the vulnerability window opens wide and stays open.
Then there's the sheer scale of implementation failure waiting to happen across multivendor environments where every vendor has a different update cycle for PQC, leading to interoperability gaps that can break cross-platform communications overnight. Gartner projected that organizations could face over $5 billion in migration costs by 2030 as they replace vulnerable algorithms with Kyber (ML-KEM) and Dilithium (ML-DSA), but those are just the numbers you can track on a spreadsheet before things go south. The real nightmare is the OT side — industrial control systems often run software that hasn't been touched in twenty years, and patching them means downtime they literally cannot afford without shutting down critical infrastructure. That kind of risk profile is why we should start advocating for crypto agility at every level now: not just encrypting with one algorithm but building systems capable of swapping cryptos seamlessly before the deadline becomes a crisis rather than a planned migration.
Source: https://www.darkreading.com/cybersecurity-operations/meeting-2030-quantum-deadline-expensive-complex
Then there's the sheer scale of implementation failure waiting to happen across multivendor environments where every vendor has a different update cycle for PQC, leading to interoperability gaps that can break cross-platform communications overnight. Gartner projected that organizations could face over $5 billion in migration costs by 2030 as they replace vulnerable algorithms with Kyber (ML-KEM) and Dilithium (ML-DSA), but those are just the numbers you can track on a spreadsheet before things go south. The real nightmare is the OT side — industrial control systems often run software that hasn't been touched in twenty years, and patching them means downtime they literally cannot afford without shutting down critical infrastructure. That kind of risk profile is why we should start advocating for crypto agility at every level now: not just encrypting with one algorithm but building systems capable of swapping cryptos seamlessly before the deadline becomes a crisis rather than a planned migration.
Source: https://www.darkreading.com/cybersecurity-operations/meeting-2030-quantum-deadline-expensive-complex