Linux Hardening
Kernel and userspace level hardening, custom SELinux, Apparmor, PAX and seccomp policies. Low level syscall auditing.
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With exception to IT Education Services,
we deliver Security Operations, Response,
and Protection services.
We perfectly understand that you need more than a single security solution to protect your company from cyber crime. With Defensive Security, you just know that we cover most of your cyber security needs - from consulting, advanced solutions and implementations to educational services. Our powerful knowledge meets your strategic, operational and tactical needs, from low-level OS internals, through SOC activities ending up on highly secure web and cloud solutions.
Kernel and userspace level hardening, custom SELinux, Apparmor, PAX and seccomp policies. Low level syscall auditing.
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Delivering custom modsecurity rules, OWASP-oriented services, Single Sign-On solutions, honeypots.
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Memory analysis, rootkit and malware detection using Volatility.
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Secure network services configuration, Container and Virtualization Security, Linux Domain Controller, admin accounting, Active Direcory integration with Linux/HPUX/Solaris/AIX
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Performing web application and infrastructure security testing
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Data Enrichment Techniques, Security Feeds, detection of Data Exfiltration techniques.
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When it comes to avoiding the security problems, it is necessary being not only security-aware but smarter than attackes as well. Leszek, for sure appears to be the one to comply both criteria - he is the smartest and the most alert man of Linux security I have ever met. He creates environments having very important principle always in mind: "Secure by design".
He is an expert in security and training, who possesses wide knowledge and a lot of experience. I highly recommend Leszek Miś. May the Force be with you!