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Discovering an OSSEC/Wazuh Encryption Issue

I’m trying to get the Wazuh agent (a fork of OSSEC, one of the most popular open source security tools, used for intrusion detection) to talk to our custom backend (namely, our LogSentinel SIEM Collector) to allow us to reuse the powerful Wazuh/OSSEC functionalities for customers that want to install an agent on each endpoint rather than just one collector that “agentlessly” reaches out to multiple sources. But even though...

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Using Multiple Dynamic Caches With Spring

In a third post about cache managers in spring (over a long period of time), I’d like to expand on the previous two by showing how to configure multiple cache managers that dynamically create caches. Spring has CompositeCacheManager which, in theory, should allow using more than one cache manager. It works by asking the underlying cache managers whether they have a cache with the requested name or not. The problem with that is when...

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Six Things I Learned from Mr. Robot

Mr. Robot is an amazingly accurate series about a hacker (Elliot Alderson) and his, uhm, undertakings. The series is consulted by many cybersecurity experts and so every hack that happens is actually properly executed, using real tools and commands that do exactly what an infosec expert would expect. Nothing shown on screen is the usual bullshit TV hacking. And that is awesome and scary in a number of ways. Obviously, this post is full...

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Am I a Real Expert?

The other day I had a conversation with a scientist friend who said something alone the lines of “yes, I work in that general field, but I’m not an expert in your question in particular”. IT is not science, of course, but I asked myself whether I am a real expert in the things that I do. And while it’s nearly impossible to hit exactly the fine line between impostor syndrome and boasting, this post is neither and has a point, so...