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Channel

k8s (in)security

@k8security

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

12,999subscribers

+53 since we began measuring on 6 August 2026

Risers and fallers across the register · movement among entries of 10,000–31,623.

Register entry

Telegram ID-1001390522820
TypeChannel
Username@k8security
DescriptionКанал о (не)безопасности Kubernetes + микросервисных, контейнеризированных приложений. Ведет команда www.luntry.ru #ZST99 Вопросы, идеи, предложения => @Qu3b3c https://knd.gov.ru/license?id=673ddbc21039886b1d03b7ce&registryType=bloggersPermission
CreatedBetween 1 June 2018 and 30 June 2021— estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded6 August 2026
Last confirmed live21 August 2026
Measurements held15
Confirmed unchanged1 time, most recently 21 August 2026
On Telegramt.me/k8security

Growth

12,94612,99912,972.56 August 2026 — 12,946 subscribers6 August 2026 — 12,946 subscribers7 August 2026 — 12,947 subscribers9 August 2026 — 12,949 subscribers10 August 2026 — 12,948 subscribers11 August 2026 — 12,954 subscribers12 August 2026 — 12,962 subscribers13 August 2026 — 12,968 subscribers14 August 2026 — 12,979 subscribers16 August 2026 — 12,980 subscribers17 August 2026 — 12,977 subscribers18 August 2026 — 12,976 subscribers19 August 2026 — 12,981 subscribers20 August 2026 — 12,992 subscribers21 August 2026 — 12,999 subscribers6 August 202621 August 2026
15 measurements spanning 15 days, net +53. 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 12,938–13,007 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
21 Aug 2026, 13:2812,999+7
20 Aug 2026, 15:4812,992+11
19 Aug 2026, 13:2212,981+5
18 Aug 2026, 12:2712,976-1
17 Aug 2026, 14:3612,977-3
16 Aug 2026, 08:4612,980+1
14 Aug 2026, 19:0812,979+11
13 Aug 2026, 12:1612,968+6
12 Aug 2026, 13:2312,962+8
11 Aug 2026, 10:1712,954+6
10 Aug 2026, 07:2612,948-1
9 Aug 2026, 10:5212,949+2
7 Aug 2026, 10:2412,947+1
6 Aug 2026, 09:2012,946no change
6 Aug 2026, 03:2212,946first reading

Engagement

34 posts held, back to 9 July 2026the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 28 pagesof Telegram’s post history, 20 posts per page.

ERR · 30 days
24.5%
avg views ÷ 12,999 subscribers
Avg views / post
3,190
22 posts measured
Reaction rate
0.666%
reactions ÷ views · ER floor
Posts in window
23
of 34 held

ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.

ER is defined industry-wide as (forwards + reactions + comments) ÷ views— note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate.

What these figures were computed from
WindowRolling 30 days · latest post in window 21 August 2026
Posts held34 (9 July 202621 August 2026)
Views total70,120
Reactions total467
Forwards / commentsnot exposed by the public surface — not measured, not estimated
Readings taken22 Aug 2026, 13:47 UTC

Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.

Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.

Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.

What this channel posts

Photos
1,150
Videos
2
Links
1,740

Lifetime counters from Telegram’s own channel header, read 22 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.

Video runtime
1m 34s
Average length
1m 34s

Measured directly from 1 video with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no mark.

Reaction mix

613 reactions across 29 posts, in 14 distinct kinds. The most used accounts for 36.7% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
🔥22536.7%
16627.1%
👍15625.4%
🙊213.43%
🤔152.45%
🌚111.79%
💩40.653%
🤡40.653%
👎30.489%
🥰30.489%
20.326%
10.163%
👏10.163%
😁10.163%

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 33 of the 34 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 681reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 34 most recent posts we hold, published 9 July 2026 to 21 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

21 Aug 2026, 05:03 UTC≈1,460 views12 reactionsread 22 August 2026

Многие очень мало внимания уделяют labels и вообще думают, что с безопасностью они никак не связаны... И это большая ошибка. Давайте рассмотрим метку "admission.gatekeeper.sh/ignore", которая поставленная на Namespace, выводит его из под наблюдения OPA Gatekeeper webhook. Тут атакующему понадобится операция: kubectl label namespace <ns-name> admission.gatekeeper.sh/ignore=true Для нее нужны права: apiVersion: rb

🔥6👎32👍1

Signed Дмитрий Евдокимов

20 Aug 2026, 05:00 UTC≈1,780 views19 reactionsread 22 August 2026
Photo

В статье «Introducing Nirmata Runtime for Kyverno» Nirmata представила Runtime — расширение Kyverno, которое переносит enforcement политик с уровня Kubernetes admission непосредственно в Linux kernel. Для этого используются eBPF и BPF-LSM, что позволяет синхронно блокировать опасные действия: запуск процессов, доступ к файлам, сетевые соединения и определённые протоколы. Особенно интересно применение для AI-агентов:

10🔥6👍3

Signed r0binak

19 Aug 2026, 05:02 UTC≈1,950 views13 reactionsread 22 August 2026

О реальном использовании в своей инфраструктуре такого проекта как Firecracker на наших просторах мало кто говорит (да и мало кто использует). НО наши хорошие друзья, которые активно занимаются AI и fuzzing, в одном из своих постов рассказали как и зачем (механика snapshot/restore) в общем можно делать свои собственные для этой легковесной VMM. А если у вас есть опыт использования Firecracker и Kata containers, то д

🔥74👍2

Signed Дмитрий Евдокимов

18 Aug 2026, 05:00 UTC≈2,420 views19 reactionsread 22 August 2026
Photo

На конференции Black Hat USA 2026 вышел доклад Beyond Seccomp: Breaking and Rebuilding Syscall Filtering for Microservices о том, где современные механизмы фильтрации syscall'ов дают слабину. Авторы выделяют три проблемы: stateless-фильтрация Seccomp не учитывает последовательность вызовов, eBPF-энфорсмент может реагировать слишком поздно, а загрузка политик через Kubernetes Operator создаёт окно между стартом контей

7🔥7👍4🤔1

Signed r0binak

17 Aug 2026, 05:05 UTC≈2,520 views21 reactionsread 22 August 2026

containerPort в манифесте — это документация, а не контроль. Kubernetes его не проверяет: контейнер может слушать порты, которых в YAML нет, и наоборот. Ровно на этом разрыве между декларацией и реальностью построена работа «Inside Job: Defending Kubernetes Clusters Against Network Misconfigurations». Они прогнали 287 публичных Helm-чартов от Bitnami, Banzai Cloud, CNCF, Prometheus Community через связку статическог

🔥174

Signed Дмитрий Евдокимов

14 Aug 2026, 05:02 UTC≈2,960 views10 reactionsread 22 August 2026
Photo

В статье «Does Kubernetes DRA Replace HAMi?» разбирается, станет ли Kubernetes DRA заменой для HAMi в работе с GPU. DRA предоставляет нативный механизм для описания, планирования и распределения специализированных устройств, включая возможность делить ресурсы GPU между Pod’ами. Но DRA и HAMi решают разные задачи. DRA отвечает за управление и планирование ресурсов, а HAMi — за runtime enforcement, то есть фактическое

6👍2🔥2

Signed r0binak

13 Aug 2026, 05:00 UTC≈3,040 views21 reactionsread 22 August 2026

Когда говорят про sandbox в Linux, обычно вспоминают gVisor, Kata Containers или seccomp-профили. А есть куда более скромный инструмент, который при этом крутится на миллионах десктопов, — bubblewrap. Это тот самый движок песочницы, на котором работает Flatpak, и живёт он в организации containers рядом с Podman и Buildah. Ключевая идея: это container tool для непривилегированного пользователя — никакого демона и roo

👍136🔥2

Signed Дмитрий Евдокимов

12 Aug 2026, 05:02 UTC≈3,210 views24 reactionsread 22 August 2026

В официальном блоге Kubernetes вышел пост с обзором основных изменений, которые войдут в Kubernetes 1.37. Если смотреть исключительно на security часть релиза, то есть несколько интересных нововведений. Во-первых, статические Pod'ы больше не смогут ссылаться на Secrets и ConfigMaps — в Kubernetes исправили баг, который позволял им получать доступ к API-ресурсам. Также SELinuxMount включат по умолчанию для поддержива

👍129🔥3

Signed r0binak

11 Aug 2026, 05:01 UTC≈3,150 views24 reactionsread 22 August 2026
Photo

Недавно прошла конференция KubeCon + CloudNativeCon Japan 2026 (расписание со слайдами, видеозаписи) и мы выделили с нее следующие доклады связанные с безопасностью: - Vulnerability Response for Large Open Source Projects - Sandbox for Agentic Application With Cloud Native Stack - Identities and Authentication for Your Agents With Keycloak - User Namespaces in Production: Enabling Root in Containers With RWX - Detec

14👍5🔥5

Signed Дмитрий Евдокимов

10 Aug 2026, 05:01 UTC≈3,110 views24 reactionsread 22 August 2026
Photo

Очередная LPE уязвимость в Linux — SCTPhantom (CVE-2026-64564), связанная с use-after-free в реализации SCTP. Проблема появилась ещё в ядрах 2.6.25 и связана с некорректной обработкой ASCONF-сообщений, которая приводит к повторному использованию уже освобождённого sctp_transport. Самое интересное здесь — возможность превратить уязвимость в container escape. Исследователям удалось построить цепочку эксплуатации, кото

17💩4🔥3

Signed r0binak

7 Aug 2026, 05:03 UTC≈3,510 views25 reactionsread 22 August 2026

Работа с container registry у многих до сих пор сводится к docker pull / docker push, а значит к запущенному демону, docker.sock в раннере и лишним привилегиям там, где они совсем не нужны. regclient — это Go-библиотека и три CLI для работы с OCI-совместимыми реестрами без container runtime и без привилегированного доступа к хосту: - regctl — инспекция, копирование и ретегирование с сохранением digest, работа с OCI

👍12🔥94

Signed Дмитрий Евдокимов

Showing the 12 most recent of 34 posts we hold for @k8security. 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.

Citation-graph rank

Citation-graph rank — 93,796 of 1,583,249entries in the measured graph. A weighted position computed from the forward and mention edges below — republished posts weigh more than named mentions — and recomputed periodically, over the whole graph. Published only as this ordinal position, never as a score: a position is a fact, and a score printed beside one channel’s name would read as a verdict this register does not make. The two counts beneath stay separate for the same reason mentions are never summed with forwards anywhere else on this page — a named-by count costs nothing to manufacture. The top 100 by this measure, or how it is computed.

Forward network

Republishes

Channels on the register whose posts this channel has forwarded.

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.

Mentions

Named by 6 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.

Names

Channels on the register whose handles appear in this channel's posts.

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

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.

Selectel
@Selectel · 63,648
Telegram ranks this channel #22 of 96 here — alongside 95 others — read 21 August 2026
infosec
@it_secur · 61,139
Telegram ranks this channel #29 of 81 here — alongside 80 others — read 22 August 2026
Life-Hack - Хакер
@haccking · 63,208
Telegram ranks this channel #31 of 85 here — alongside 84 others — read 21 August 2026
Утечки информации
@dataleak · 120,351
Telegram ranks this channel #39 of 83 here — alongside 82 others — read 14 August 2026
Social Engineering
@Social_engineering · 125,143
Telegram ranks this channel #55 of 82 here — alongside 81 others — read 13 August 2026
SecurityLab.ru
@SecLabNews · 83,697
Telegram ranks this channel #66 of 90 here — alongside 89 others — read 18 August 2026

This channel appears in 6 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 21 August 2026 — this entry's latest reading, not the date you are reading this.

“k8s (in)security” (@k8security), 12,999 subscribers as measured 21 August 2026. Telegram Register, tgregister.com/channel/k8security.

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.