Search by tag: security

2026

03

Nov

Melting the Cold Chain: How Exposed Modbus is Spoiling Europe’s Supermarkets

Following the Ankara water leaks, the focus has shifted to the commercial sector. Over the last few weeks, hackers have been systematically thawing out supermarket freezers across France and the rest of Europe. Here is how they are weaponizing HVAC maintenance panels to destroy the cold chain.

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31

Oct

When OSINT Becomes a Crime: The vncsnatch Legal Gray Area

The Turkish water infrastructure leak has entered its next predictable phase: debating whether the researcher broke the law. Let’s talk about the exact moment a passive port scan legally becomes unauthorized access, and why vncsnatch sits right on that fault line

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28

Oct

When Your Side Project Makes the Evening News in Ankara

I built vncsnatch to demonstrate how many unprotected desktops are sitting on the open internet. Recently, a researcher used it to scan Turkish IP ranges, and accidentally discovered that their critical water infrastructure was one unauthenticated click away from disaster.

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11

Oct

Linux Snippets #15: The Network Quarantine Room (netns)

When you start a commercial VPN client, it brutally hijacks your entire routing table. If you only want to route one specific application through the tunnel while leaving your host untouched, you don’t need a virtual machine – you just need a Linux network namespace.

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16

Sep

Linux Snippets #14: Find the Firewall Rule That Ate Your Packet

Somewhere inside the firewall, your packet entered a chain, followed three jumps, and was quietly sentenced to death by a rule written during an emergency in 2022. nft monitor trace lets you follow one carefully selected packet through the bureaucracy and discover exactly where policy became homicide.

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13

Sep

Linux Snippets #13: Ask the Machine What Killed It

After a reboot, every Linux server develops temporary amnesia and insists that everything is running perfectly. Fortunately, the journal may remember the OOM killer, dying disk, or panicking service from five minutes earlier. Here is how to question the previous boot before log rotation provides it with legal representation.

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11

Sep

Linux Snippets #12: tcpdump Without Capturing the Entire Internet

Capture everything and inspect it later’ sounds reassuringly forensic until the PCAP consumes the disk, records half the office, and still buries the failed handshake beneath six million irrelevant packets. Here is how to make tcpdump answer one question at a time – with limits established before optimism becomes an incident.

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08

Sep

Linux Snippets #11: Run It Once, Contain It, Forget It

Some jobs are too important for nohup, yet far too temporary to deserve permanent accommodation in /etc/systemd/system. Here is how to use systemd-run to give a one-off command strict resource limits, logging, and supervision—and then make the evidence disappear.

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18

May

How WordPress Attackers Get Their Dirty Fingers into your System

Most WordPress malware does not begin with a shadowy genius manually editing your theme at midnight. It begins with bots, bored plugins, sloppy permissions, and one unlucky functions.php file that became writable. This is the story of how attackers get the pen, why they keep writing, and why deleting one dirty file is rarely enough.

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16

May

Linux Snippets #6: The Silent Network Sweep

Stop guessing which IP your new Raspberry Pi or IoT device grabbed from the router. Here is the scommand to instantly map your entire local network without triggering alarms

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