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Techniczne opracowania na temat cyberbezpieczeństwa, hardeningu Linuxa, infrastruktury chmurowej i nie tylko.

$ ls | wc -l → 9 wpisów

banking-cybersecurity-standards.md 01
Banking SecurityDORAFFIECSWIFTComplianceFinancial Services

Cyber Resilience in Banking: DORA, FFIEC, and SWIFT's Security Controls

A practitioner's guide to the major cybersecurity frameworks governing financial institutions - DORA in the EU, the FFIEC guidelines in the US, and the SWIFT Customer Security Programme worldwide.

9 min read →
pci-dss-deep-dive.md 02
PCI DSSCompliancePayment SecurityCryptographyPenetration Testing

PCI DSS 4.0: What the Standard Actually Demands

A practitioner's breakdown of PCI DSS v4.0 - its twelve requirements, the 2025 deadline for future-dated controls, and where organisations most commonly fall short.

7 min read →
ot-integration-security-reality.md 03
OT SecurityICSCommissioningIEC 62443PLCProfinetField Notes

OT Integration in the Field: What the Standards Don't Tell You

After commissioning industrial systems across multiple sites, I've seen firsthand how far the real world sits from IEC 62443. This is what poor OT security looks like when nobody's watching.

9 min read →
quantum-computing-and-security.md 04
QuantumCryptographyPost-QuantumNISTPKIOT Security

Quantum Computing and the Coming Cryptographic Reckoning

Quantum computers will break RSA-2048 and ECC-256 in hours once they're powerful enough. Here's what that means for the systems we secure today - and how to prepare before it's too late.

7 min read →
azure-security-az500-threats.md 05
AzureAZ-500Cloud SecurityIdentitySIEMThreat Intelligence

Azure Security in 2025: Real Threats and AZ-500 Defenses

A practical look at the most dangerous attack vectors targeting Azure environments right now, mapped to the AZ-500 control domains - identity, network, data, and detection.

5 min read →
hardening-linux-server.md 09
LinuxHardeningSSHUFWSecurity

Linux Server Hardening: A Practical Checklist

A step-by-step guide to hardening a fresh Ubuntu/Debian server - from SSH lockdown and firewall rules to kernel parameter tuning and audit logging.

3 min read →