Filippo Valsorda personal blog
The most backdoor-looking bug I’ve ever seen (2021)
This is the story of a bug that was discovered and fixed in Telegram’s self-rolled cryptographic protocol about seven years ago. The bug didn’t get any press, and no one seems to know about it, probably because it was only published in Russian.
- Points
- 173
- HN comments
- 187
- Submissions
- 2
- Cited by
- 10 commenters
Security & PrivacyNetworking & Internet2022
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Jan 20, 2022 | The most backdoor-looking bug I’ve ever seen (2021) by ssklash | 173 | 77 |
| May 10, 2024 | The most backdoor-looking bug I've ever seen (2021) by takoid | 145 | 110 |
Cited in comments
Linked from 12 Hacker News comments by 10 different people, from Feb 2022 to Apr 2025.
Most recent: