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Channel

CTF News

@ctfnews

On this record: Topic · Growth · Engagement · Reactions · Posts · Citations · Telegram's recommendations · Cite this entry

4,767subscribers

+57 since we began measuring on 6 August 2026

Risers and fallers across the register · movement among entries of 3,162–10,000.

Register entry

Telegram ID-1001093426975
TypeChannel
Username@ctfnews
Created9 January 2017measured — cross-checked against a third-party dataset (ext.tg_channel)
First recorded6 August 2026
Last confirmed live19 September 2026
Measurements held14
Confirmed unchanged1 time, most recently 19 September 2026
On Telegramt.me/ctfnews

Topic

Hacking & security — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-UD-Q6_K_XL, prompt version 1) read this channel’s own recent posts on 20 August 2026 and assigned it the closest of 31 fixed categories, at 45% 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

4,7054,7674,7366 August 2026 — 4,710 subscribers6 August 2026 — 4,710 subscribers6 August 2026 — 4,707 subscribers9 August 2026 — 4,705 subscribers13 August 2026 — 4,709 subscribers16 August 2026 — 4,707 subscribers20 August 2026 — 4,712 subscribers23 August 2026 — 4,718 subscribers26 August 2026 — 4,721 subscribers30 August 2026 — 4,722 subscribers2 September 2026 — 4,730 subscribers6 September 2026 — 4,739 subscribers11 September 2026 — 4,753 subscribers19 September 2026 — 4,767 subscribers6 August 202619 September 2026
14 measurements spanning 44 days, net +57. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 4,696–4,776 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
19 Sept 2026, 07:574,767+14
11 Sept 2026, 07:574,753+14
6 Sept 2026, 14:164,739+9
2 Sept 2026, 13:224,730+8
30 Aug 2026, 10:054,722+1
26 Aug 2026, 23:264,721+3
23 Aug 2026, 23:434,718+6
20 Aug 2026, 02:084,712+5
16 Aug 2026, 16:464,707-2
13 Aug 2026, 03:154,709+4
9 Aug 2026, 21:514,705-2
6 Aug 2026, 21:254,707-3
6 Aug 2026, 03:524,710no change
6 Aug 2026, 00:294,710first reading

Engagement

24 posts held, back to 26 May 2026the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 7 pages 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 24 posts for this entry, the most recent from 11 August 2026. An engagement rate over an empty window would be a number about nothing.

Reaction mix

725 reactions across 23 posts, in 4 distinct kinds. The most used accounts for 35.4% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
25735.4%
👎19827.3%
🔥18225.1%
👍8812.1%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 24 of the 24 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 769 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 24 most recent posts we hold, published 26 May 2026 to 11 August 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Recent posts

11 Aug 2026, 17:55 UTC837 views21 reactionsread 12 August 2026
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Вы как, передохнули от постов? Продолжаем 20-21 августа пройдёт OFFZONE 2026. Но это вы и сами знаете. А вот чем там заняться стфщикам, мы вам расскажем. Куда, когда и зачем, уже на сайте: https://ctfnews.ru/news/2207

11👍5🔥4👎1

8 Aug 2026, 19:43 UTC≈1,760 views43 reactionsread 12 August 2026
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Ночной дроп для любителей A/D Тут ребята из МИФИ совместно с Rop Runners планируют подвезти сервисы, не решаемые нейронками. Проверить, правда это или нет, можете сами 24 августа на их онлайн A/D тренировочке RCTF 2026. И нам потом расскажите, пожалуйста. Все детали уже на сайте: https://ctfnews.ru/news/2206

🔥22👍119👎1

7 Aug 2026, 17:13 UTC≈2,030 views16 reactionsread 12 August 2026
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Волга, ПГУТИ, два ствола CTF — что ещё нужно? Осталась последняя возможность попасть на VolgaCTF: побеждайте 22 – 23 августа на ПГУТИ CTF 2026 и пакуйте чемоданчики — Самара ждёт. Все явки и пароли на сайте: https://ctfnews.ru/news/2205

6👍4👎3🔥3

6 Aug 2026, 15:08 UTC≈1,980 views21 reactionsread 12 August 2026
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Топ-3 способа бесплатно поехать на Бали 1. Пройти квалы SAS CTF, о результатах уже писали здесь. 2. Победить в одном из зачётов Kaspersky{CTF} 29 – 30 августа, как это сделать рассказывали тут. 3. Стать спикером на конференции Security Analyst Summit от Kaspersky — call for papers открыт до 14 августа! Все детали собрали на сайте: https://ctfnews.ru/news/2204

12🔥5👍3👎1

5 Aug 2026, 18:55 UTC≈1,980 views34 reactionsread 12 August 2026
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Jeopardy + бета-тест + играюсь + попозже ультранасилие SqWD Open Beta CTF — первое открытое соревнование на собственной инфраструктуре SqWD. Это одновременно и классический CTF, и публичное бета-тестирование платформы. Участники смогут не только решать задания, но и аккуратно исследовать пользовательские функции платформы, находить ошибки, недостатки и уязвимости. Регистрация открывается через 5 минут! Все подробно

👎188👍4🔥4

4 Aug 2026, 08:31 UTC≈1,920 views33 reactionsread 12 August 2026
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Любите трушные игры без интернета? Тогда мы идём к вам! И берём с собой Arch Linux 19 августа встречаемся в Москве на 8-часовой битве CTFZone 2026, своих агентов оставляйте дома. Успевайте — регистрация заканчивается сегодня в 18:00! Узнали для вас все детали проведения: https://ctfnews.ru/news/2201

14👎8🔥7👍4

2 Aug 2026, 11:37 UTC≈2,270 views39 reactionsread 12 August 2026
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Найдены секретные кадры 1/8, в которой Роналду не вылетел!! Потому что даже не участвовал. А очень зря! В самом разгаре прямой эфир дуэлей Пляжного сезона от DUCKERZ. Смотрим и болеем за ребят по ссылке: https://www.twitch.tv/duckerz_hub

16👎11🔥7👍5

29 Jul 2026, 19:22 UTC≈3,390 views41 reactionsread 12 August 2026

Posted without readable text

25🔥8👍5👎3

26 Jul 2026, 11:33 UTC≈3,870 views37 reactionsread 12 August 2026
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🥵 22 июля состоялось заседание оргкомитета Х Кубка CTF России — на нём утвердили регламент проведения соревнования в этом году. В 2026 году появится новый зачёт для обучающихся по программам среднего профессионального образования (СПО). Соревнование за кубки пройдёт в 4 номинациях: 😤 школьники, 😤 обучающиеся по программам СПО, 😤 студенты вузов, 😤 смешанный зачёт. Этапы проведения Х Кубка CTF России 😏Отборочный — 31

16👎12🔥6👍3

24 Jul 2026, 17:56 UTC≈2,610 views41 reactionsread 12 August 2026

Posted without readable text

25🔥13👍3

22 Jul 2026, 07:09 UTC≈2,770 views34 reactionsread 12 August 2026
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Успевайте занять место под зонтиком — регистрация на Пляжный сезон от DUCKERZ заканчивается сегодня! 2 — 31 августа соревнуемся в дуэлях 1 на 1 на выбывание в прямом эфире. Получите флаг первым и заберите заслуженные призы — мерч BI.ZONЕ Bug Bounty и DUCKERZ. А для не прошедших отбор или не подавших заявку — отдельные задания и призовой фонд. Все подробности на сайте: https://ctfnews.ru/news/2194

15🔥9👍7👎3

15 Jul 2026, 18:40 UTC≈3,210 views39 reactionsread 12 August 2026
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«Сердце Сысолы» ждёт тебя! Отборочный этап на финал в Сыктывкар стартует 8 августа. Читайте подробности: https://ctfnews.ru/news/2193

👎17🔥11👍65

Showing the 12 most recent of 24 posts we hold for @ctfnews. 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.

Forward network

Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.

Appears in Telegram’s recommendations for other channels

The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.

Positive Hack Days Media
@positivehackmedia · 30,694
Telegram ranks this channel #45 of 88 here — alongside 87 others — read 6 September 2026
Positive Technologies
@Positive_Technologies · 28,968
Telegram ranks this channel #86 of 87 here — alongside 86 others — read 9 September 2026

This channel appears in 2 seed channels' Telegram-generated recommendation lists in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.

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 19 September 2026 — this entry's latest reading, not the date you are reading this.

“CTF News” (@ctfnews), 4,767 subscribers as measured 19 September 2026. Telegram Register, tgregister.com/channel/ctfnews.

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.