We took our platform down for 22+ days to kill the old codebase and rebuild a 3-layer architecture. Here is what we learned.
A few weeks ago, our initial version was simply a standalone Post-Quantum Cryptography (PQC) tool. But as we tested it against real infrastructure, the reality hit hard: dropping raw PQC algorithms into an existing stack doesn't solve real-world enterprise adoption if the surrounding perimeter, policy enforcement, and API layers are brittle or buggy.
Rather than patching a compromised foundation with duct tape, we made a painful call: we pulled the platform down for more than 22 days of maintenance, scrapped the buggy legacy codebase entirely, and rebuilt it from the ground up.
Today, Shatachandra Shield is officially back live, evolved from a standalone PQC script into a full 3-Layer Cybersecurity Appliance:
- L3 Zero-Trust Gate: Strict policy enforcement that fails closed by design—no valid key, no request passed.
- L4 API Gateway: Reverse-proxy architecture managing ingress traffic, rate limits, and live server-side license verification.
- L5 PQC Engine: High-performance cryptographic core running NIST FIPS 203 ML-KEM-768.
Before bringing the new architecture public, we ran a zero-assumption pre-launch verification audit where every single metric on the site had to match an active, reproducible test artifact:
- Real bugs caught in the final pass: Even during the final review, we caught an insecure fallback default in our distributed client license script (
core.py) pointing to a stale HTTP endpoint, which we immediately patched to production HTTPS before release. - AVX2 SIMD Optimization: Verified 809 ymm instructions in
ring.solive on EC2 to hit 0.43 ms KeyGen, 0.50 ms Encapsulation, and 0.61 ms Decapsulation. - NIST FIPS 203 Compliance: Passed 180/180 byte-exact Known-Answer Tests (KAT) and 60/60 input-validation vectors.
- Perimeter Verification: Qualys SSL Labs A+ (hybrid X25519 + ML-KEM-768), clean OWASP ZAP DAST scan (0 High/Med/Low), and verified Wiz PQC compliance.
Taking a product offline for over three weeks when the startup playbook says to "ship fast and break things" was uncomfortable. But in infrastructure security, shipping something broken breaks trust permanently.
The platform is officially live: www.shatachandrashield.xyz
To the founders and backend engineers here: Have you ever had to pull the brake and delete a codebase to rebuild the right architecture? How did you manage that downtime?
Taking it down for 22 days says more about your current customer base than about your architecture, and that is the useful signal: pre-revenue is the only window where that call is cheap, so you spent the option at the right time. The part I would rethink is the pitch, because enterprise buyers do not purchase on FIPS 203 KAT vectors, they purchase on who picks up the phone when the gate fails closed at 2am. I sell a veteran-staffed SOC into regulated SMBs and those deals turn on operational accountability, not crypto benchmarks, so who owns incident response on your appliance today?
Fair challenge, and honestly the direct answer right now is: I do — I'm a solo founder, so incident response today means me. No pretense of a 24/7 SOC behind this yet.
But I'd push back gently on the framing that this competes with what you're selling. A veteran-staffed SOC and a PQC handshake/gateway layer aren't the same purchase decision — you're selling the "who do I call at 2am" layer, I'm selling the "what's actually protecting the data in transit" layer underneath it. In a lot of regulated-SMB deals, both get bought together, not instead of each other. The crypto benchmarks aren't the pitch to an SMB buyer, you're right — they're there so the technical reviewer on the vendor's side can verify the claims aren't vapor, same way your team's credentials are the technical proof on your side.
So no illusions here — I'm not claiming operational maturity I don't have yet. Just claiming the crypto foundation is real and verifiable, which is a different (and earlier-stage) part of the stack than incident response.
Deleting a legacy codebase to get zero-trust policy enforcement right takes serious guts, especially when dealing with NIST FIPS 203 compliance where any fallback bug ruins the trust model.
Catching that stale HTTP fallback in core.py right before release was a massive save. Beyond the 22 days of dev downtime, how did you handle communicating that maintenance window to early testers or enterprise leads without making them question the project's stability?
Appreciate that — the FIPS 203 fallback risk was exactly why a full rebuild felt safer than patching around it.
On communication: it wasn't total silence, though I'll admit it wasn't centralized either. I posted progress updates on LinkedIn during the rebuild and replied directly to anyone who emailed asking what was going on — explained we were hardening the architecture and adding security layers, not abandoning the project. Since this was pre-launch with no live paying accounts yet, the stakes were lower than they'd be for an active enterprise customer base — but if I had one, I'd want a single public status page as the source of truth instead of scattered updates, which is the lesson I'd carry into any future maintenance window like this.
Spot on, Vivek. Pre-launch definitely gives you that safety net to move fast and break (or rebuild) things, but you’re completely right—transparency is what maintains trust.
A single public status page plus a dedicated changelog will be non-negotiable for us moving forward once live accounts are on board. When users know why a window is happening and can track progress in real-time, downtime transforms from a red flag into a sign of active engineering.
Appreciate you bringing that perspective up—it’s a solid reminder as we scale!
Taking an active platform down for 22 days to execute a ground-up architectural rebuild is a terrifying gamble that most founders would avoid, yet it shows incredible conviction in long-term technical health over short-term revenue. While a 3-layer refactor can drastically eliminate technical debt and set the stage for scalable growth, the key takeaway is that such drastic downtime is only worth the risk if you have absolute clarity on your core architecture and clear communication with your users.
Appreciate that — and you're right that the "worth it" calculus changes completely once there are live users depending on the service. In this case it was pre-launch/pilot, so the downtime cost was time and opportunity, not user trust. The clarity part is what made it defensible though: I wasn't tearing things down speculatively, I had already benchmarked the old architecture's limits and knew exactly what the 3-layer rebuild needed to fix. If this were a live product with paying accounts, I'd take the parallel-build-and-cutover route other commenters mentioned instead.
The architecture question is already covered above, so a different angle - how did you handle communication during the 22 days itself? Silence for three weeks reads as abandonment way before day 22 rolls around, even to users who'd be totally fine with a real rebuild if they knew that's what was happening. A public status page with a fixed date range and short periodic updates, even just 'day 12, still on track,' does more for trust than a big writeup after the fact, because prospects evaluating you during that window have no way to tell a deliberate rebuild apart from a dead project.
Fair question - it wasn't total silence, though maybe not visible enough
in one central place. I posted updates on LinkedIn during the rebuild and
replied directly to emails from people asking, explaining we were
hardening the architecture and adding two more security layers. But you're
right that a single public status page would have been a better single
source of truth than scattered updates across channels - something I'd
do differently next time.
And for what it's worth - 22 days quiet in tech doesn't always mean dead,
sometimes it just means something bigger was being built underneath.
That's a fair distinction actually, LinkedIn posts and direct email replies are real communication, not silence. I think the gap is just for people who aren't already following you on LinkedIn or in your inbox, a first-time visitor hitting a dead site mid-rebuild has no way to find those updates at all. A status page mostly helps that cold visitor, not your existing audience, who you're clearly already taking care of.
The bit I'd push back on is the 22 days of full downtime rather than building the new stack alongside the old one and cutting over. With a security appliance the rebuild call makes sense, but going dark for three weeks teaches existing users they can live without you, which is a harder thing to undo than a buggy perimiter. Out of interest, did you lose any paying accounts over that window, or was it early enough that nobody noticed?
Basically it was a pilot project so there were no live clients yet - if
I had paying accounts during it, the scenario would have to be different,
probably closer to what you're describing (parallel build + cutover)
rather than full downtime.
The full-teardown call was because I wanted a cleaner, more verifiable
architecture from the ground up rather than patch around the original
version's structure. Every benchmark and cert on the site now is measured
directly off the rebuilt version, not carried over from before.
The 22-day shutdown is the interesting decision here.
Curious whether the rebuild has changed anything yet in how prospects evaluate or trust the product, or if that validation is still ahead.
A lot of changes has made as in the beginning our software was only PQC,
now it's complete Triple layer PQC. Also as the structure change latency
and avalanche effect also changed. Basically I want to say the total
module is changed. You can think it's a fully upgraded and final version
of this software.
As for whether it's changed how prospects evaluate or trust it - that
validation is still ahead honestly, I'm still working on getting it in
front of more people.
I am not sure about the future as the technology and threat level change
we must upgrade it. But as of now this is the most updated version. I
will be happy if you can try it and give genuine suggestions. For more
details on how to install and get started, you can visit our live
website - www.shatachandrashield.xyz, the installation process is explained there. We are offering
14 days free trail to all new members.
That makes sense. The next useful signal will probably be how real prospects respond to the upgraded version once you have it in front of enough of them.
Agreed, that's the real test ahead. Will share how it goes once I have
more people trying it. As for me I don't believe anything in the tech world till you personally experience it. So if you are searching for a PQC middleware you can test it first. And that is the reason why I have given 14 days free trial offer.
That makes sense. I’d be interested in staying in touch as the validation develops. What’s the best email to reach you on?
I think you haven't checked my website if you had checked you must not ask this question. So my email and LinkedIn link is available on my website contact us page.
Thanks! I’ve just sent it over.
Looking forward to hearing your thoughts whenever you have a chance.