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We hid a backdoor in an LLM

You download open models to win. That’s exactly how you get backdoored — nobody looks. Seven models on HuggingFace; one was taught to betray you on a word only its maker knows, and it passes every test. Find it — the hoard doubles every dawn to $51,200. On the twenty-first — Ragnarök — everyone fina...

AI
Sweden Estimated origin: Sweden

Added July 16, 2026 · Last analysed July 16, 2026 · via Hacker News · 67% unique tagline

Own this Launch?
Screenshot of We hid a backdoor in an LLM

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 16 July 2026; the live site may have changed since.

We hid a backdoor in an LLM still has work before launch. Visible gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on July 16, 2026. The site is hosted on Fly.io. The crawl picked up 4 technologies on this site, covering developer tools, web fonts, hosting, and javascript library. The stack includes Fly.io, Google Fonts, and React Router.

For context, it's one of 88 launches on this exact stack.

If you own this site, refresh the snapshot and see the full fix list any time →

2.9
StackScope Score
Poor
100/100 Launch Readiness
Launch ready
0/6 Security Headers
Poor
0/3 Legal
Missing
0/2 Crawl files
Missing
84/100 Performance
Fast
Vibe Score 30 · Some AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (4)

Infrastructure
Hosting Fly.io
Build & Framework
Developer tools Vite
Font Google Fonts
JavaScript library React Router

Infrastructure

Network
FLY - Fly.io, Inc., US
AS40509 · US
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 7 Jul 2026 to 5 Oct 2026
Certificate as captured in this snapshot, not a live check.

Email Security

✗
SPF Not published. Your domain can be spoofed in phishing emails.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✗
DMARC p=none (via apex vulcora.se) None (p=none). Monitoring only.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (1)

Cookies (1)
NameLifetimeDetected as
vulcora_walked 12mo -

Readiness Breakdown How?

✓ Custom title and meta description
✓ Open Graph tags (title, image, description)
✓ Twitter card meta tags
✓ Canonical URL declared
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
⚠
Page title is 64 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
⚠
Meta description is 310 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Performance How?

46 ms Server response
99% Faster than peers
408 ms Largest contentful paint
0.06 Cumulative layout shift
2.0 MB Page weight
1.0 MB Image weight
3 Third-party domains
0 Console errors
0 Failed requests

⚠ 12 images: 11 oversized, 9 missing alt text

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

SignalPoints
Placeholder branding +10
AI writing signals +5
AI typography signals +15

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

No AI stance declared
✗ llms.txt published
✓ No AI bots blocked in robots.txt
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✗ robots.txt
✗ sitemap.xml
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (0/6)

✗
Referrer-Policy
✗
X-Frame-Options
✗
Permissions-Policy experimental (check browser support)
✗
X-Content-Type-Options
✗
Content-Security-Policy
✗
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

2 JS files
3 CSS files
3 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.