Technology — 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 9 August 2026 and assigned it the closest of 31 fixed categories, at 78% 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 the other topics.
Observations
These are measurements, not verdicts. Each one below states something we counted, alongside the evidence it was counted from, so you can check it rather than take it. None of them is graded: every observation this register holds is recorded at severity 0, because the precision of the detectors behind them has not been measured yet, and a rating we cannot support is worse than none. Read each as a fact about the data, not as a judgement about the channel. How we measure.
Content that also appears on other registered channels
Posts published here appear in near-verbatim form on 1 other registered channel. This entry also forms a group of 2 channels linked by matching posts. The matching is on the text itself, not on Telegram’s forward marker, so it finds a copy whether or not it was labelled as one.
No sample pairs were kept for this entry. The counts below were measured, but without the pairs there is nothing here for you to open and check, so treat the relationship as recorded rather than demonstrated.
Channels this entry shares post bodies with, where at least one matching post pair has no forward credit between the two channels, or to a common source, recorded in our data
Text overlap is the Jaccard coefficient over the set of distinct three-word phrases in the two bodies: 1.00 is identical wording, and the threshold for counting a pair at all is 0.70. Candidates are generated by simhash LSH (4 x 16-bit bands, exact Hamming <= 3) verified against the bodies with Jaccard over the SET of distinct 3-word shingles. Published first counts which side of each matching pair carries the earlier timestamp — in this corpus, which is the limitation directly below.
What this cannot establish
MEASURED, DOMINANT ERROR SOURCE: a post ingested before 2026-08-06 may have carried a forward header that was not recorded. A 45-pair hand-check against live t.me pages found 14 (31%) where the live page shows a forward header naming the other channel and the database has none, plus 4 more (9%) naming a third party. The text match itself was wrong 0 times out of 45. Read attribution_capture.items_in_trusted_window before treating the unattributed count as a claim.
Telegram lets a channel forward a post with a header naming the source, and we only began reliably recording that header on 2026-08-06. None of the 0 matches recorded here fall after that date, so for this entry we cannot say whether any of them carried a credit. The duplication is measured; the absence of attribution is not.
“Published first” means first in this corpus. We hold 105 comparable posts for this entry, running 25 July 2026 to 10 November 2026. A channel we have read one page deep will look younger than a neighbour we have read in full, and the order would flip with no change in the underlying facts.
The detector’s own notes on this observation, as it recorded them. Names in this_style are fields of the underlying evidence record, which the plain-English paragraphs above read out for this entry.
Verbatim republication has three causes and the text separates only two: a clone/mirror, unattributed copy-paste, or BOTH channels copying a common third source that neither attributes. The spread filter (content held by at most 8 channels) reduces the third and does not remove it.
'Earliest' means earliest IN THIS CORPUS. A channel ingested one page deep will look younger than a neighbour ingested in full; corpus_coverage above is there to be checked before the direction is believed.
shared_verified_est extrapolates the sampled pass rate over the full narrow match count; sampled/passed are the numbers actually measured.
Absence of a forward header is not proof of intent: Telegram lets a channel disable forward attribution, and a credit written in the body is not parsed as attribution here (mention_edge_either_way above is the closest available signal).
Of the group of 2 channels, the one whose matching posts we hold earliest is @Social_engineering — which is this entry. That is a statement about our reading window, not a claim of authorship.
Recorded under the key clone_source, last confirmed 11 November 2026. An observation that a later pass no longer finds is cleared, and a cleared observation is removed from this page rather than being shown struck through — we do not keep publishing a claim we have withdrawn. Dispute an observation.
Channels linked by matching posts
This channel is in a group of 2 registered channels linked by matching posts. Links are found by comparing text fingerprints across every channel on the register.
Which channel, if either, published first is deliberately not shown in this list. “First” could only mean first in our own crawl, which depends on how deep we happened to reach into each channel’s history, not on when the content was actually first posted. Our one hand-check read 45 of the highest-confidence flagged pairs against the live Telegram pages. In 18 of them the live page showed a “Forwarded from” credit that our database had no record of, so reading that pair as an unattributed copy was wrong; the check did not measure who published first. This list is ordered by subscriber count, the same as every other listing on this site, never by which channel we think came first. Near-verbatim matching has several ordinary explanations besides copying — a channel mirroring itself, an unattributed repost, or two channels independently repeating the same wire story — and this measurement cannot tell those apart. How this is measured.
63 measurements spanning 97 days, net -368. 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 124,625–125,242 and does not start at zero.
Measurement log — every subscribers count we have recorded, most recent 20 of 63
Measured (UTC)
Subscribers
Change
10 Nov 2026, 16:41
124,696
-19
9 Nov 2026, 02:31
124,715
-2
7 Nov 2026, 19:44
124,717
-35
6 Nov 2026, 16:07
124,752
-22
5 Nov 2026, 17:56
124,774
-3
4 Nov 2026, 15:28
124,777
-29
3 Nov 2026, 12:39
124,806
-30
2 Nov 2026, 12:09
124,836
-10
1 Nov 2026, 14:28
124,846
-21
31 Oct 2026, 11:27
124,867
-10
30 Oct 2026, 12:45
124,877
-27
29 Oct 2026, 14:09
124,904
-24
28 Oct 2026, 12:07
124,928
-12
27 Oct 2026, 13:29
124,940
+8
26 Oct 2026, 16:19
124,932
-3
25 Oct 2026, 14:35
124,935
-1
24 Oct 2026, 12:30
124,936
+3
23 Oct 2026, 12:35
124,933
-6
22 Oct 2026, 10:58
124,939
-10
21 Oct 2026, 06:26
124,949
first reading
Engagement
105 posts held, back to 25 July 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 207 pages of Telegram’s post history, 20 posts per page.
ERR · 30 days
7.60%
avg views ÷ 124,696 subscribers
Avg views / post
9,480
29 posts measured
Reaction rate
0%
reactions ÷ views · ER floor
Posts in window
29
of 105 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. It is computed over the 2 of 29 measured posts that carry a reaction reading, and over those same posts' views.
What these figures were computed from
Window
Rolling 30 days · latest post in window 10 November 2026
Posts held
105 (25 July 2026 – 10 November 2026)
Views total
274,930
Reactions total
0
Forwards / comments
not exposed by the public surface — not measured, not estimated
Readings taken
11 Nov 2026, 03:55 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
≈1,130
Videos
≈3
Links
≈2,330
Lifetime counters from Telegram’s own channel header, read 11 November 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
3s
Average length
3s
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.
Telegram Stars
Stars received
22
across the posts below
Posts paid on
8
of 105 we hold a reading for · 8%
Most on one post
7
single highest reading
A paid reaction is a reader spending Telegram Stars — bought with money — on a post by @Social_engineering. Telegram publishes the count on the public post preview alongside ordinary reactions, and this register reads it there. It is the only figure on this site that measures money moving rather than attention.
Stars are not reactions, and the two are never added. They are rendered in the same strip on Telegram and counted in the same shape, but one is a tap and the other is a purchase. The reaction totals and the engagement rate elsewhere on this page exclude every figure in this section, and no rate here is computed against a reaction count.
This is not revenue, and we publish no currency figure. What a Star costs a reader and what it pays a channel are different numbers, Telegram takes a share we cannot observe, and the terms have changed. Converting a Star count into money would be an estimate dressed as a measurement, so the count is where we stop.
Counted over the 105 most recent posts we hold for this entry, published 25 July 2026 to 10 November 2026. Star counts above 1,000 reach us in Telegram’s short form and carry the same three-significant-figure rounding as everything else on this page.
Advertising
Ad load
5.71%
6 of 105 posts carry an ad marker
Regulatory tokens
6
posts carrying an erid · 6 distinct tokens
Median views · ads
7,540
over 6 measured posts
Median views · rest
10,100
over 99 measured posts
An ad marker, not a judgement about a post. A post is counted here because it carries one of two explicit markings: an erid token, which Russian law has required on paid placements since 2022 and which is issued against a specific advertising contract, or a #реклама / #ad hashtag in the body, which is the channel declaring it itself. The first is documentary; the second is a self-declaration and is weaker. No classifier reads the text and decides — nothing on this site guesses that a post is an advertisement.
This is a floor, and it can only ever be a floor. A channel that runs paid placements without marking them produces no marker for us to count, and an unmarked ad is indistinguishable from an ordinary post on the public surface. The ad load above therefore means “the share of posts that declared themselves”, never “the share of posts that were paid for”. A low figure is not evidence of a channel that runs few ads.
Both figures are medians, and no ratio between them is published. Each is a view reading that actually occurred on a post, picked by percentile_disc rather than averaged, so one viral post cannot move it and no interpolated value is invented between two readings. They are printed side by side with the count behind each rather than as a ratio: an ad and an ordinary post are not otherwise matched — for topic, for length, for hour of day — so the gap between them is a description of two groups and not the effect of one being an ad.
Advertising tokens recorded on this entry
erid
Posts
First seen
Last seen
2VtzquYHK7H
1
12 August 2026
12 August 2026
2Vtzqv8Aft7
1
27 August 2026
27 August 2026
2W5zFGGRMhK
1
7 September 2026
7 September 2026
2W5zFGteEkS
1
30 October 2026
30 October 2026
2W5zFJAiGdg
1
9 November 2026
9 November 2026
2W5zFK34DoF
1
6 August 2026
6 August 2026
A token repeated across several posts is one advertising contract placed more than once, which is what the identifier is for. The strings are reproduced exactly as they appeared in the post or in its click-through URL and are not validated against any registry — we record the marker a channel published, and whether it resolves to a real contract is a question for the register that issued it.
Measured over the 105 most recent posts we hold, published 25 July 2026 to 10 November 2026. Views are the latest single reading held for each post, and any reading at or above 1,000 is rounded by Telegram to three significant figures.
Recent posts
Telegram’s own ‘edited’ marker: 0 of 29 posts held from the last 30 days (0%) carried it when this register last read them. The marker says a post was changed after publishing, not what it said before — this register holds the earlier wording only where an edit fell between two of its own reads (see the edit ledger and how it is measured).
👨💻 Ноутбук Джона Коннора.
• 35 лет назад, в июле 1991 года, состоялась премьера легендарного фильма "Терминатор 2". Но я хочу рассказать вам не о самом фильме, а немного о другом...
• В начале фильма Джон Коннор использует лэптоп для подбора PIN украденной дебетовой карты. Этим лэптопом является Atari Portfolio - первый в мире "наладонный" компьютер, который был выпущен в июне 1989 года.
• Atari Portfolio имел…
• Давайте на секунду вернемся в начало 90-х. Как тогда выглядели компьютеры? Огромный ЭЛТ-монитор, системный блок, который гудит, как пылесос, шариковая мышь. И никакой кнопки "Пуск"!
• Запуск любой программы в те времена напоминал небольшой квест. Сначала нужно было открыть Program Manager - главное окно с группами иконок, разбросанными в произвольном порядке - и найти нужное приложение. Вроде бы, звучит просто? …
Маршрут построен: выбираем свой путь в ИБ
Защита или пентест, вендор или интегратор, собственная практика или большая компания — у карьеры в кибербезопасности много сценариев.
На public talk от K2 Кибербезопасность:
✅ разберем плюсы и минусы разных карьерных треков
✅ сравним работу в Blue и Red командах
✅ обсудим, как не потеряться среди множества ролей
После — попрактикуемся проходить собесы, поедим пиццу и разы…
• Недавно рассказывал вам о Macintosh Portable и в качестве его особенности выделил клавиатуру с трекболом. Так вот, в то время практически все клавиатуры были с именно с нампадом (NumPad), только Apple решили пойти другим путем и реализовали в клаве Macintosh Portable трекбол... Но давайте расскажу про нампад. Откуда вообще он взялся и зачем его придумали?
• Все началось с идеи ускорить рутинный ввод цифр. Ведь н…
• Огромный лонгрид по исследованию безопасности macOS: от архитектуры системы и директорий до статического анализа, Gatekeeper и других механизмов защиты.
• По сути, это настоящая шпаргалка и отличное руководство для Red Team-специалистов, реверс-инженеров и security ресерчеров. Забираем по ссылке ниже:
➡ https://redteamrecipes.com/blog/osmrnotes/
S.E. ▪️ infosec.work ▪️ VT
• Красивое: нашел интересный инструмент, который называется Netviz! Тулза предназначена для проектирования сетевой архитектуры.
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• Проект написан на TypeScript с использованием Vite и Tailwind. Распространяется под лицензией MIT, что позволяет л…
• Нашел интересный офлайн-инструмент для пентеста и bug bounty: Payload'ы, конструктор команд по клику, GTFOBins, готовые скрипты, словари, встроенный CyberChef, реверс-шеллы, справка по Burp, операционные чек-листы и многое другое.
• Инструмент называется ARS3NAL, а работает он прямо в браузере, без необходимости что-то устанавливать. Никакой телеметрии. Никакого облака. Без аккаунта. Данные лежат в локальном фай…
Приглашаем принять участие в Студенческом чемпионате «Кибербезопасность в финансах» Молодежной программы 365!
Киберчемпионат Банка России — командное соревнование для тех, кто учится на ИТ- и ИБ-специальностях. Участников ждет погружение в мир кибербезопасности: решение практических задач, командная работа, взаимодействие с профильными экспертами, знакомство с единомышленниками и многое другое.
Какие будут этапы?
…
• Огромная коллекция стеков Docker Compose из более чем 300 сервисов. Каждое приложение было отлажено и проверено автором в домашней лаборатории, конфигурации к некоторым сервисам доступны в исходном репозитории.
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• К слову, у автора данной коллекции есть множество других проектов, которые уже освещались в этом канале. Вот некоторые из них:
➡Lazyjournal - терминальный пользова…
• А ведь проект Containerlab продолжает развиваться, что очень хорошо. Напомню, что это бесплатное open source решение для построения сетевых лабораторий на основе контейнеров, которое позволяет создавать сетевые модели без громоздких виртуальных машин и физических устройств.
• Из плюсов: возможность очень быстро и понятно взаимодействовать \ управлять топологией и есть функционал экспорта графа в различных формат…
📚 Переведено на RU: PowerShell Security.
• То, что так хорошо подходит в качестве мощного инструмента автоматизации для администраторов, по итогу оказывается полезным как для хакеров, так и для пентестеров. Речь идет о PowerShell - это расширяемое средство автоматизации с открытыми исходниками, которое состоит из оболочки (командной строки) и скриптового языка. Кстати, в этом канале опубликован хороший пост про ист…
• Недавно заметил на одном из сайтов интересную модель "переносного" компьютера от Apple, который назывался Macintosh Portable. Он был представлен публике в бородатом 1989 году. Меня заинтересовала клавиатура устройства, которую, между прочим, можно было переконфигурировать, а рядом с основным блоком клавиатуры стоял трекбол. Но, обо всем по порядку...
• Macintosh Portable был первым "портативным" компьютером от A…
Showing the 12 most recent of 105 posts we hold for @Social_engineering. 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.
Stars beside a post are paid reactions — Telegram Stars, bought with money and spent on that post. They are a different unit from reactions and are never added to them, here or anywhere else on this page.
Posts edited after publishing
@Social_engineering edited 1 post after it first published — the same permalink now carries different wording than the one this register originally read, caught because our own crawl held a copy of the earlier text.
An edit is not deception. Typo fixes, price updates and corrections look exactly like this too — this register can tell you the wording changed and when, not why. How this is measured.
First edit seen
23 September 2026
Most recent edit
23 September 2026
Posts recorded as deleted after publishing
We recorded 19 posts on @Social_engineering as deleted — posts this register held that were missing from the channel’s public page on two separate reads, taken from different network addresses at least an hour apart.
A deletion is not wrongdoing. This register can see that a post it held is no longer on the channel’s public page, and when — not why. Expired ad placements, reposts, rotating links and corrections all look the same. This is a count of recorded detections, not an exact total: it misses deletions we could not see, because only a post we held and later re-read inside the page can be seen to go, and it may include a small number of wrong records. How this is measured.
First seen missing
22 August 2026
Most recent seen missing
7 November 2026
Median time before seen missing
11 days
Seen missing in the last 30 days
10
Forward network
Republished by
Channels on the register that have forwarded this channel's posts into their own feed.
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 26 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. The 24 listed below are the most frequent namers; the rest are counted above but not each listed.
Named by
Channels on the register whose posts name this channel's handle.
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.
Channels Telegram recommends alongside this one
Telegram’s own answer, not this register’s. When this register asks Telegram’s API what is similar to this channel, this is the list it returns, in the exact order Telegram returns it — never re-sorted by subscribers or by anything else this register measures. The relationship, and the order, are Telegram’s; we record them and date them, and make no claim of our own about which of these channels actually resemble this one.
Read from Telegram’s recommendation API, most recently 13 August 2026. Telegram holds a list like this for a small and growing share of the register — how this is measured, and why most channel pages show nothing here.
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.
PulSe @Pulsechanel · 20,004 Telegram ranks this channel #1 of 69 here — alongside 68 others — read 29 September 2026
Mycroft Intelligence @mycroftintel · 20,691 Telegram ranks this channel #1 of 76 here — alongside 75 others — read 25 September 2026
Investigation & Forensic TOOLS @forensictools · 22,609 Telegram ranks this channel #1 of 74 here — alongside 73 others — read 20 September 2026
S.E.Reborn @S_E_Reborn · 22,459 Telegram ranks this channel #1 of 66 here — alongside 65 others — read 20 September 2026
infosecurity @tg_infosec · 26,845 Telegram ranks this channel #1 of 74 here — alongside 73 others — read 11 September 2026
Кладовка Pavlu @KladovkaPavlu · 64,668 Telegram ranks this channel #1 of 76 here — alongside 75 others — read 4 September 2026
Mr. Robot @elliot_cybersec · 38,923 Telegram ranks this channel #1 of 70 here — alongside 69 others — read 31 August 2026
CYBER HUNTER - Кибербезопасность @cyberbezopasno · 58,634 Telegram ranks this channel #1 of 50 here — alongside 49 others — read 26 August 2026
infosec @it_secur · 63,401 Telegram ranks this channel #1 of 81 here — alongside 80 others — read 22 August 2026
Life-Hack - Хакер @haccking · 63,021 Telegram ranks this channel #1 of 85 here — alongside 84 others — read 21 August 2026
Этичный Хакер @hack_less · 243,065 Telegram ranks this channel #1 of 81 here — alongside 80 others — read 12 August 2026
S.E.Book @S_E_Book · 23,090 Telegram ranks this channel #2 of 64 here — alongside 63 others — read 19 September 2026
Лаборатория хакера @lab_hack · 25,423 Telegram ranks this channel #2 of 71 here — alongside 70 others — read 14 September 2026
Белый хакер @bezopasno_soft · 29,601 Telegram ranks this channel #2 of 78 here — alongside 77 others — read 8 September 2026
Интернет-Розыск @irozysk · 45,728 Telegram ranks this channel #2 of 79 here — alongside 78 others — read 27 August 2026
Russian OSINT @Russian_OSINT · 48,508 Telegram ranks this channel #2 of 82 here — alongside 81 others — read 26 August 2026
Open Source @open_source_friend · 52,669 Telegram ranks this channel #2 of 87 here — alongside 86 others — read 24 August 2026
Kali Linux @linuxkalii · 55,842 Telegram ranks this channel #2 of 89 here — alongside 88 others — read 23 August 2026
Бункер Хакера @book_academ · 21,293 Telegram ranks this channel #3 of 72 here — alongside 71 others — read 23 September 2026
no system is safe // cybersec @nsis_cybersec · 21,166 Telegram ranks this channel #3 of 71 here — alongside 70 others — read 23 September 2026
Серверная Админа | Компьютерные сети @school_network · 26,411 Telegram ranks this channel #3 of 85 here — alongside 84 others — read 12 September 2026
Task No Face @TaskNoFace · 28,996 Telegram ranks this channel #3 of 78 here — alongside 77 others — read 8 September 2026
Codeby @codeby_sec · 37,071 Telegram ranks this channel #3 of 76 here — alongside 75 others — read 1 September 2026
Хакер — Xakep.RU @xakep_ru · 40,313 Telegram ranks this channel #3 of 83 here — alongside 82 others — read 30 August 2026
This channel appears in 124 seed channels' Telegram-generated recommendation lists in total, of which the 24 where it ranks highest are shown above. 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 10 November 2026 — this
entry's latest reading, not the date you are reading this.
“Social Engineering” (@Social_engineering), 124,696 subscribers as measured 10 November 2026. Telegram Register, tgregister.com/channel/Social_engineering.
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.