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Linux Fundamentals Since its inception in 1991 by Linus Torvalds as a product of the free software philosophy, Linux has become an indispensable choice for system administrators, developers, and network engineers due to its security, flexibility, and open-source nature. Today, the vast majority of modern server systems, embedded devices, mobile operating systems (e.g., Android), and cloud-based infrastructures run on the Linux kernel. This guide provides comprehensive content introducing the Linux ecosystem to both beginners and those who wish to systematically reinforce their fundamental knowledge. ...

What is Vendor Lock-in (Vector Lock-in)? In modern IT infrastructures, external dependency brings risks alongside flexibility and scalability. Especially in areas such as cloud services, data platforms, and licensed software, organizations can often fall into the traps of Vendor Lock-in, or more broadly, Vector Lock-in. 1. What is Vendor Lock-in / Vector Lock-in? 1) Definition Vendor Lock-in is a situation where an organization becomes dependent on a specific provider at the level of IT infrastructure, software, hardware, or services. This dependency typically arises due to technical incompatibilities, data format differences, or costly migration procedures. ...

Three Kings Conquering the Cloud: AWS, Azure, and Alibaba Cloud in the Turkish Market Cloud computing has fundamentally changed how everyone, from individuals to global corporations, accesses technology. It’s no longer just about storing data; developing artificial intelligence applications, hosting enterprise applications, or delivering global content is now possible with the capabilities offered by these infrastructures. The three major players in this field—Amazon Web Services (AWS), Microsoft Azure, and Alibaba Cloud—play significant roles both globally and in Turkey. Let’s explore the services each provider offers, their user profiles, and their impact in Turkey. ...

Invisible Threat: Facebook (META) and Millions of Exposed S3 Data What Happened? In 2019, hundreds of millions of Facebook user data records were found stored unprotected on Amazon Web Services (AWS). The incident was uncovered by research from cybersecurity firm UpGuard. This data breach occurred not directly from Facebook’s infrastructure, but as a result of misconfigured cloud settings by third-party applications using Facebook’s APIs. There were two main data sources: ...

One-Packet Disaster: Capital One and the Cloud Unlocked by SSRF What Happened? In 2019, Capital One, one of the largest banks in the USA, suffered one of the biggest cloud-based data breaches in history. Approximately 106 million customers’ personal information was compromised by unauthorized individuals. The leaked data included customer names, dates of birth, email addresses, phone numbers, credit score information, bank account numbers, and social security numbers. The breach caused a major stir due to the leakage of sensitive financial data, primarily from credit card applications. ...

Deep Learning Fundamentals Deep learning is a subset of machine learning that uses neural networks with multiple layers. Let’s explore the basics. What is Deep Learning? Deep learning models learn hierarchical representations of data through multiple processing layers. Key Concepts Neural Networks: Interconnected nodes inspired by the brain Backpropagation: Learning algorithm for training networks Activation Functions: Non-linear transformations Popular Frameworks TensorFlow PyTorch Keras Start your deep learning journey today!

Machine Learning in Cyber Security Machine learning has revolutionized the field of cyber security. In this article, we’ll explore how ML algorithms help detect threats and protect systems. Why Machine Learning? Traditional security systems struggle to keep up with evolving threats. Machine learning offers: Real-time threat detection Pattern recognition Automated response Continuous learning Applications 1. Anomaly Detection ML models can identify unusual patterns in network traffic. 2. Malware Classification Automated identification of malicious software. ...