SecurityHeroblog

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Last night, on our servers

Real attacks our honeypot caught. Every morning.

Sessions
3,846
Unique IPs
221
Commands run
10,468
Login attempts
3,234

Observed 2026-10-18 · Yesterday's observations

Latest

Honeypot Log2views

559 Lines of a Checklist, Five Times Over — and Two of Them Read It Side by Side

On October 13, three sources came in over Telnet and ran through the same 559 commands five times. Each run pulled down 22 files and left within a minute and a half, and at 4:50 PM two of them arrived 0.9 seconds apart and did the same work side by side. The address that served the install script is the fourth one to show up from the same address range.

Security Basics2views

The Half-Price Coin Wallet Had Carbon Paper Under the Recovery Words

A Ledger hardware wallet sold at nearly half the list price was reported to contain a chip the manufacturer never made. According to researchers' analysis, that chip sent out the 24 recovery words that appear during initial setup. Here's why where you bought your device is itself a security question, and what to do right now.

Honeypot Log5views

A 9.5-Second Robocall Came Through Four Times in 1 Minute 40 Seconds

On the evening of October 8, the same source logged into our server over Telnet four times. All four times it finished 9 commands in 9.5–9.7 seconds, and each time it pulled down a 1,670-byte installer script. This file was downloaded 15 times that day, and all 15 times the one doing the downloading was this single source.

Security Basics4views

A 'Google Teller Counter' Set Up Inside a Strip Mall — A Login Window with the Address Bar Painted In

You clicked 'Sign in with Google' and a window appeared whose address was genuinely Google's. But that window was a fake the phishing page had drawn inside its own screen. Behind it, a human operator was taking the password and the verification code in real time. Based on a report from the security firm Island, here is the one place that separates a real window from a fake one.

Honeypot Log7views

Five Visits, Five Plugs — and None of Them Fit a Server's Socket

On the morning of October 6, a single source logged into our SSH server five times over 8 minutes and 37 seconds. Each time it ran exactly two commands, and across all visits it pulled down 24 files. Those executables were built for ARM 32-bit devices, not servers — and the client fingerprint, the distribution hosts, and the hashes were all values we had never seen before.

Honeypot Log9views

3,026 Numbers We Didn't Write Down — Everything Else Was Something We'd Seen Before

All nine file types left on our two honeypots on October 4 were hashes we had seen before. One session even came back matching a visit from 42 days earlier down to 32 seconds, 48 commands, and 12 files. Only one number set a record. Password combinations whose values we withheld — because they could be someone's real account — numbered 3,026 types, the most we have ever recorded.

Honeypot Log7views

The Parcel Count Held Steady — the Invoice Format Flipped Overnight

On October 1 there were 43,402 screen-sharing (VNC) connection attempts — within the normal range. But the version string offered on connect was a new one that had never once held a majority across 21 days, and it accounted for 63.2%. The same day, on our other server, a file named — literally — 'backdoor.sh' came down from an address we had never seen.

Security Basics9views

The Fake Answer Key AI Memorized: A Support Number That Reached a Scammer

A technique has been disclosed in which ChatGPT, Gemini, and Google's AI Overviews hand out fake customer support numbers as if they were real. The researcher found at least 374 companies whose names were impersonated and tens of thousands of fake contact pages. Here is how the AI was fooled, and what to check before you dial.

Honeypot Log10views

Same Cooler Bag, All Nine Side-Dish Containers Refilled

On September 27, a malware distribution address we had noted five days earlier served files again. The lead installer script has not changed a single bit in 37 days since August 21. All nine executables that followed were files we had never seen before, and three of them matched their earlier sizes down to the byte while differing in content.

Security Basics11views

Like the Day You Lost Your Wallet — The Number You Can Reissue After the Lookpin Breach

Level13, the operator of the men's fashion app Lookpin, has admitted to a hack. Beyond the email addresses and phone numbers it first disclosed, addresses, refund account numbers, order histories, and even personal customs clearance codes for overseas direct purchases have been confirmed as leaked. We separate what cannot be changed from the number you can have reissued, and lay out what to do today.

Honeypot Log10views

Six Cables, and the Pouch Was Exactly as It Was a Month Ago

On September 22, files came down again from a malware distribution address we first wrote down on August 21. The installer script at the front was not a single character different from a month ago, but all six executables — one per CPU type — were files we had never seen before. Five of those six carried exactly the names we had once learned only by unpacking a compressed sample.

Honeypot Log12views

One Card, 41 Places in a Day — Four Ledgers That Don't Know Each Other

On September 20, a single 389-byte public key that had appeared daily since August 16 was registered on our server from 41 different sources. That is 2.4 times the previous high of 17 among the days we compared — and there is no record that ties it in one line to the three other numbers that jumped alongside it the same day. Next to it, the executable we wrote 'was not rebuilt' three days ago came back to the same address, 1,696 bytes larger.

Security Basics13views

A Scam Script With the Blanks Filled In — The Call That Comes After a Math Academy Breach

It was reported that the test-reservation site of 'Thinking Bull' (생각하는황소), a math academy with branches nationwide including Daechi-dong, was breached and that student names, schools, grades, dates of birth, and parents' phone numbers may have leaked. Here is what to do when someone holding that information calls to say 'your child has been hurt' — and what has not yet been confirmed.

Honeypot Log16views

Same Building, Third Apartment — This Time the Boxes Wore Maintenance-Office Stickers

On September 17, a third address appeared sharing its first three octets with the address that handed out files twice in August. All seven files that came from it are absent from 27 days of records, and five of them carry name tags resembling programs Linux runs on its own. Yet the intrusion that brought these seven files appears in none of the five sessions recorded that day.

Honeypot Log16views

Seven Seconds, Twice — And the Name Tag's Front Half Matched Again

At 12:07 PM on September 15, a Telnet intrusion ran 7 commands in 7 seconds and pulled down 2 files. The address the files came from and the address the intruder came from shared their first two octets — a shape we also saw on September 7 and 8, making this the third time in nine days. And 6 hours 59 minutes later, the same thing happened once more from the same place.

Security Basics14views

The Installer Who Offers to Set Up a Game That Isn't Out Yet — GTA 6

A 100GB-plus file is circulating in search results, communities, and torrents as a 'leaked build' of an unreleased game. Click install and it seems to end with an error — but behind that, remote-control, password-stealing, and file-destroying programs all install at once. We've laid out what to do before downloading, and what to do if you've already run it.

Honeypot Log19views

The Mailbox Overflowed Again After Three Days — Both the Sender and the Name Looked Familiar

On September 13, contacts hitting the remote desktop port reached 42,578 in a single day, surpassing the previous high of 34,811 set three days earlier. The top sender was the same alias as before, and the name tag 'hello', which had dropped to 16 three days ago, came back at 7,039. All four file types received by the neighboring server were hashes we had seen before.

Honeypot Log18views

The Same 109 Callers, but the Bell Rang 24× More

On September 10, knocks on the remote desktop port came to 34,811 in a single day. That is 1.62× the 21,483 from all 14 days between August 26 and September 8 combined — yet the number of places knocking was 109, inside the usual range. This is not a record of more visitors arriving; it is a record of one place pressing the button 319 times.

Security Basics20views

One More Locker in the Hallway — 119,000 Fake Online Shops

An investigation found that the discount shopping sites you see in ads lifted their photos, their product descriptions, and even their customer service numbers straight from the real brands. 119,000-plus confirmed addresses, 44,000 brands whose names were stolen. Here's what to look at before you type a card number into a checkout page.

Honeypot Log19views

Nine Executables, Three Commands — 33 Seconds, Twice

On September 8, an address absent from 23 days of records dropped nine executables at once, differing only in CPU type. The intrusion that collected them typed exactly three commands and was over in 33.25 seconds. Then, 1 minute 12 seconds later, a 33.26-second run came through again.

Honeypot Log23views

The Same File, Twice Over — and They Left the Label Inside

On September 7, an address that had never appeared in 22 days of records showed up for the first time. The two executables downloaded from it are nearly identical in size and do the same thing — two builds differing only in the order they read numbers. Whoever made them sent them out without stripping the labels inside the files.

Honeypot Log21views

264 Sources Each Brushed Past Once — The Day the Doorway Got Thin

On September 6, the number of places knocking on the screen-sharing door went from 100 to 264 in a single day. But the number of knocks only rose 1.4x, which means the knocks per source were cut in half. This is the record of a day when a thin, wide-spread crowd was layered on top of the few who hit hard.

Honeypot Log19views

233 Identical Footprints — Only 2 Left Anything Behind

On September 4, 233 of the 419 sources that visited our server arrived carrying the same client-program marking. But those 233 didn't drop a single file, and the only marking that actually delivered a sample that day came from just 2 IPs. This is the record of a day when the most-stamped footprint and the footprint that left something behind were not the same.

Honeypot Log22views

New Clothes Every Time, But the Same Walk for Six Days Running

On September 3, four files we had written down on a blocklist five days earlier came back in. But when we fingerprinted them, three were new files that had never appeared once in 18 days of archives, and exactly one was the same file, unchanged down to the bit, for the sixth day running. What doesn't change even when the clothes do — that day's data showed it in four lines.

Honeypot Log22views

Commands Up 18.5× — Only One in 33 Had a Meaning Attached

On September 1, the commands entered into our server went from 760 to 14,085 in a single day. But only 422 of them (3.0%) had a classified intent, and the act of actually leaving someone else's key behind happened 13 times. A bigger number and a more dangerous number are not the same thing, so on this day we broke down what the bigger number actually was.

Honeypot Log20views

107 Sources Yesterday, 8 Today — Four Numbers Came Down Together

On August 31, four numbers that yesterday read 107, 107, 106, and 116 all dropped to 8 in unison. That they rose together and fell together points strongly toward their having been one cluster, but the data has still never tied the four together. Instead, 324 distinct sources knocked on the door — the fourth highest of the sixteen days — while sessions per source hit a low of 2.40.

Honeypot Log25views

107 Sources, One Try Each — Nobody Touched It Twice

On August 30, 107 different sources arrived carrying the same username and the same single password. Yet the average number of knocks per source was 1.05. Nine sources yesterday became 107 in a single day, and the same 389-byte key file came from the same 107 sources.

Honeypot Log23views

Nothing New at All — Day 14, the Same File from Nine Places

On August 29 there was not a single thing our honeypot had never seen before. The same 389-byte file showed up for the 14th day running, this time from nine different places, and the two distribution sites were unchanged too. 'Nothing happened' and 'the same thing happened again today' are not the same sentence, so on this day we wrote down the fact that nothing changed.

Honeypot Log25views

Four Boxes Arrived, and the Waybill Had No Sender

On August 28, a server that had caught nothing for two days produced four files all at once. 773,937 bytes in total, all from the same single source. But these files have no field at all for recording 'where it came from,' so we're left with no address to add to a blocklist and no distribution site to report.

Honeypot Log23views

Most Sources Ever, One-Sixth the Activity — Exactly One Thing Went Up

On August 27, the commands run on our server numbered 2,313 — one-sixth of the previous day's total. Yet the number of distinct source locations hit 442, setting a new high for the third day running, and exactly one behavior set a high alongside it: planting someone else's public key. The same 389-byte file appeared for the 12th consecutive day, this time from 26 different sources.

RMF17views

One Passport, Many Stamps — One Report for Multiple Regulations

EU NIS2, DORA, ISO 27001, Korea's ISMS-P, Japan's APPI, Singapore's CII. The names of the documents they ask for are all different, but the underlying substance overlaps. We've laid out in a table what each regulation requires and which of those slots a risk assessment report fills.

RMF26views

In My Own Vault, Locked With My Own Key

"Your data never crosses a border" is not a story about patriotism. It is a question of whose storage the assessment results sit in and who holds the key. We unpack BYOK and adequacy decisions through the analogy of a bank safe deposit box.

RMF25views

You Can See the Blueprint Without Handing Over the Keys

It's easy to assume that inspecting something means installing something. Agentless goes the other way. Instead of searching the house, it reads the blueprint. Here's how much you can learn from a single read-only permission.

Honeypot Log26views

They Swapped the Name Tag — Our List Missed in Two Days

An executable came back to our honeypot yesterday, two days after the last one. It came from a neighboring address sharing the same leading digits as the distribution host from two days earlier, with the entire file-naming convention swapped out. Not one of the twelve malicious file names we had written down in advance matched. What we got instead was a five-second routine repeated three times in one day.

RMF29views

3,000 Things to Fix and No Idea Where to Start

The ER doesn't call people in the order they arrived. It calls them in order of danger. When your vulnerability list runs thousands of lines long, that sorting is what EPSS does. Part 3 of the RMF·NIS2 series.

Honeypot Log31views

The Same Twenty Seconds as Four Days Ago, Only 3.8× Faster

Yesterday our honeypot was the busiest it has been since we started recording. 3,553 sessions, 7,574 commands. And yet not a single malicious executable came down to the server, and one session matched a record from four days earlier on seven separate values. The only difference was how long it took.

RMF26views

Why 'Risk Assessment' Sounds So Difficult

A health checkup report doesn't say 'you're healthy' — it lists numbers and grades. Risk assessment works the same way. Here's how NIST SP 800-30 and ISO 27005 turn risk into numbers. Part 2 of the RMF·NIS2 series.

RMF34views

Why You Need Security 'Paperwork' to Sell in the EU

Like the hygiene grade posted on a restaurant door, the EU judges security by paperwork, not by what you say. What NIS2 is, and why the word 'evidence' comes up at the contract table. Part 1 of the RMF·NIS2 series.