https://www.youtube.com/live/ATDVdphmzw4?si=oocgAr2P4EmFDKL9

Channel
CTF-BR
@ctfbr
On this record: Topic · Growth · Engagement · Posts · Cite this entry
321subscribers
+0 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of Under 1,000.
Register entry
| Telegram ID | -1001469093261 |
|---|---|
| Type | Channel |
| Username | @ctfbr |
| Created | Between 1 April 2019 and 30 September 2021 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 8 August 2026 |
| Last confirmed live | 12 October 2026 |
| Measurements held | 7 |
| Confirmed unchanged | 1 time, most recently 12 October 2026 |
| On Telegram | t.me/ctfbr |
Topic
Hacking & security — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 22 September 2026 and assigned it the closest of 31 fixed categories, at 75% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 12 Oct 2026, 05:58 | 321 | -3 |
| 1 Oct 2026, 03:40 | 324 | +4 |
| 15 Sept 2026, 19:56 | 320 | +1 |
| 7 Sept 2026, 05:00 | 319 | +1 |
| 22 Aug 2026, 09:48 | 318 | -3 |
| 8 Aug 2026, 07:31 | 321 | no change |
| 7 Aug 2026, 20:42 | 321 | first reading |
Engagement
20 posts held, back to 29 March 2024 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 page of Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 8 May 2025. An engagement rate over an empty window would be a number about nothing.
Recent posts
https://ctf-br.org/2024/09/ctf-da-sbseg-2024/
https://bit.ly/tecland-2024-infos
Photo, posted without a caption
Reta final, últimos 25 dias de inscrições para o evento mais exclusivo do ano! Infos e inscrições: https://bit.ly/tecland-2024-infos Já é leet e quer participar de graça? curl harder.tha.never.pro
Último desafio, o suprassumo dos PPCs!
Photo, posted without a caption
2 meses até o evento mais exclusivo (e leet) do ano! Sua chance de aprender e fazer networking com os melhores está quase indo embora :) https://bit.ly/tecland-2024-infos
Amanhã fica mais caro! https://bit.ly/tecland-2024-infos
https://bit.ly/tecland-2024-infos
https://bit.ly/tecland-2024-infos
Esse é o nível dos palestrantes do TecLand Vulnerability Research Edition! Vai ficar de fora? O segundo lote está a todo vapor! https://bit.ly/tecland-2024-infos
Showing the 12 most recent of 20 posts we hold for @ctfbr. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
Cite this entry
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 12 October 2026 — this entry's latest reading, not the date you are reading this.
“CTF-BR” (@ctfbr), 321 subscribers as measured 12 October 2026. Telegram Register, tgregister.com/channel/ctfbr.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.