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Exploiting Slack's video embeds to achieve E2EE communication

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HN · launched Jun 15, 2026 · 31 upvotes (top 21%) · 0 views

Niche: private and secure messaging apps · 144 launches, 10 in the last 7 days ▼ -41% · Explore this niche →

Category and tags
  • Security
  • Communication
  • Prosumer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

More like this: all 144 launches in private and secure messaging apps →

Could you build this?

Yes This is a clever exploit and proof-of-concept Slack app utilizing Web Crypto APIs inside an embedded iframe to manage keys and decrypt payloads.

Discussion

3 comments analyzed.

Competitors mentioned: webxdc (DeltaChat implementation), WeChat mini apps, Alipay mini apps

Concerns raised: Increased attack surface and security vulnerabilities with more components, Difficulty securing multiple connecting points

Feature requests: Major services support fully-featured apps inside their client

Competitors

Other products that read as similar to this one : 1240 launches clear the similarity bar, closest 8 shown.

Attention rank: #252 of 1241 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 228 days after the earliest competitor.

  • GRACE · github · 2026-10-05 · 23 upvotes · similarity 0.56
  • slacklet · github · 2026-09-17 · 9 upvotes · similarity 0.54
  • SenseNova-6.8-Code2Video · github · 2026-10-24 · 75 upvotes · similarity 0.54
  • kandinsky-6 · github · 2026-10-05 · 242 upvotes · similarity 0.53
  • BeefTV · github · 2026-09-24 · 333 upvotes · similarity 0.51
  • ultra-video-splitter · github · 2026-11-10 · 101 upvotes · similarity 0.51
  • video2rig · github · 2026-10-23 · 79 upvotes · similarity 0.50
  • jevreel · github · 2026-10-15 · 34 upvotes · similarity 0.50

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.