PQC Basics · Part 7 of 10
“Industry-Standard Encryption” Isn’t an Answer: What to Ask Instead
August 23, 2026 · PQCClear · 5 minute read
By now the stakes are clear: vendors handle long-lived, sensitive data, and some of it may already be exposed to the risk part 6 covered. So when you ask a vendor about their encryption, what actually counts as a good answer? Here's how to tell.
What a Vague Answer Actually Tells You
“We use industry-standard encryption” sounds reassuring and says almost nothing.
It doesn’t name an algorithm. It doesn’t say where the encryption is applied or what it protects. It doesn’t say when it was last reviewed. It’s the security equivalent of “we take your safety seriously,” a sentence built to sound complete while committing to nothing specific enough to check.
To be fair to the vendors who give this kind of answer, it’s rarely a deliberate dodge. Often it means nobody at that vendor has ever been asked the question specifically enough to need a better one. Which is itself useful information. If a vendor can’t immediately name their encryption method, that’s a signal about their own internal visibility, not just their communication style.
Vague, unverifiable
“We use industry-standard encryption.”
No algorithm named. Could mean anything from current best practice to something outdated. Nothing here can be checked.
Specific, checkable
“Customer data in transit is protected with TLS 1.3. Data at rest uses AES-256, with keys managed through our KMS.”
Named algorithms, named key handling, a specific scope. Someone could verify or challenge each piece of this.
Vague, unverifiable
“Our platform is bank-grade secure.”
Bank-grade isn't a technical standard. It's a marketing phrase with no defined meaning behind it.
Specific, checkable
“We completed a cryptographic inventory in Q2. Our highest-sensitivity system still uses RSA-2048 and is scheduled for migration by Q1 next year.”
Names the current state, the specific gap, and a real timeline. Honest about what isn't finished yet.
What a Real Answer Contains
This maps directly onto the CBOM entry from part 3. A vendor giving a genuinely useful answer is essentially handing you a plain-language version of that record, whether they call it that or not.
- 01
The specific algorithm, not a category. “RSA-2048,” not “strong encryption.”
- 02
Where it's applied. Data in transit, data at rest, and authentication are often handled differently, and a good answer distinguishes between them instead of treating encryption as one blanket fact.
- 03
What it protects. Customer PII, payment data, and internal logs don't carry the same stakes, and a vendor who can name what's covered has clearly looked.
- 04
Whether it's been recently reviewed, or is running on a configuration set years ago and never revisited.
- 05
An honest gap, if one exists. A vendor who names a known weakness and a real timeline to fix it is giving you a far more trustworthy answer than one claiming everything is already perfect.
Can This Be Checked, or Only Trusted?
Here’s a distinction worth having in mind even at this stage, before the next post goes further into it. Some of what a vendor tells you can be independently confirmed, by looking directly at their code, their configuration, or their running systems. Some of it can’t be confirmed that way, and comes down to trusting that the vendor answered honestly.
Neither kind of answer is worthless. A vendor’s own honest self-report is still far better than silence. But they’re not the same thing, and knowing which kind of answer you’re looking at changes how much weight it should carry in your own assessment.
A checkable answer is worth more than a confident one.
So once you have a genuinely specific answer, checkable or not, where does it actually live, and how do you use it day to day? That’s the practical question this whole series has been building toward, and it’s exactly where the next post goes.
Score, certificate, or CBOM?
A vendor might hand you a number, a badge, or a full technical report, and each one answers a different question. Part 8 breaks down what each is actually for, so you know which to reach for and when.
Read part 8PQC Basics is an ongoing series from PQCClear explaining post-quantum cryptography readiness in plain language, one idea at a time. This post represents PQCClear’s own editorial explanation and should not be construed as technical, legal, or regulatory advice.
The vendor answers quoted above are illustrative, written to show the difference specificity makes rather than drawn from any real vendor response. Key sources: the CycloneDX specification, which defines the cryptographic bill of materials format referenced here; Quantum-Readiness: Migration to Post-Quantum Cryptography (CISA, NSA, and NIST joint factsheet, August 2023), which recommends asking vendors for specific cryptographic detail rather than general assurances.