A Catastrophic Failure Waiting to Happen: The Unpreparedness of Trust Continuity in a Post-Quantum World
Imagine waking up one morning to find that your bank’s online services have been crippled, and you’re unable to access your accounts. Sounds like a nightmare? Unfortunately, it’s not just hypothetical. A catastrophic failure waiting to happen lies within the heart of our digital infrastructure: the Root of Trust. In June 2024, Google’s Chrome Root Program made a crucial decision to stop trusting new Transport Layer Security (TLS) certificates from Entrust due to years of compliance failures and technical issues. While this move was necessary, what followed was a lack of coordination and preparedness for the aftermath.
What happened is that trust continuity became someone else’s problem. We’re good at making technical decisions to remove trust anchors, but we’re woefully unprepared for the consequences. Root programs like Chrome, Mozilla, Microsoft, and Apple make these calls well, but they lack a way to coordinate what happens next. The result is a national readiness problem hiding in plain sight.
At first glance, Web PKI appears distributed and decentralized. However, it’s actually underpinned by a small set of embedded roots that secure TLS, code signing, S/MIME, and machine-to-machine authentication – the very fabric of our online economy. Remove one root, and the blast radius is not just one website; every service connected to it is affected.
History has shown us what happens when trust anchors are compromised. DigiNotar in 2011 issued over 500 fraudulent certificates, while Symantec in 2017 wound down after years of misuse. Entrust in 2024 was the latest casualty. In each case, the pain stayed within IT teams, which scrambled to swap out certificates before customers noticed. However, we’ve been lulled into a false sense of security by thinking that these incidents were isolated and easily recoverable.
The reality is far more dire. Picture a regional bank whose only Certificate Authority (CA) has been distrusted. Its team scrambles to resolve the issue, but the CA is overwhelmed, leaving customers locked out and regulators demanding answers. Meanwhile, competitors who issued certificates from a second CA continue to operate smoothly.
Two forces are eroding the conditions that made past events survivable: the migration to post-quantum cryptography and the increasing use of AI in attacks. The National Institute of Standards and Technology (NIST) has standardized post-quantum replacements like FIPS 203, 204, and 205, forcing a migration of security primitives on a schedule we can’t control. At the same time, AI lowers the attacker’s cost to find weak keys, scale social engineering against CA staff, and probe signing pipelines for vulnerabilities.
Here lies the uncomfortable truth: no one owns the morning after. The Cybersecurity and Infrastructure Security Agency (CISA) coordinates cyber incidents but doesn’t own the trust decision. The CA/Browser Forum sets issuance rules, not national response plans. NIST publishes guidance, while the Federal PKI governs government certificates. Each entity owns a slice, but none have responsibility for cross-sector cleanup.
The issuers are starting to move in the right direction. In July 2025, the CA/Browser Forum passed Ballot SC-089, requiring every publicly trusted TLS CA to maintain and annually test mass revocation plans. However, this only binds the issuers; enterprises and sectors still have no matching duty to plan, test, or align.
We need to treat trust continuity with the same urgency as we do electric-grid black-start or DNS recovery. These plans are named, rehearsed, and tested long before the bad day. Public-key trust deserves the same standing. Someone must coordinate at the national level, not a new agency whose only job is to connect those making distrust calls with sectors that live with them. And playbooks must be in place before the event – for emergency root removal, intermediate CA compromise, stolen code-signing keys, forced algorithm sunsets, and cross-sector cascades.
Don’t wait until it’s too late; start planning today.
Source: Dark Reading — 2026-07-31