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Physics vs Code: Why Google’s “Quantum Money” Challenges the Blockchain Paradigm
For the past decade, trust on the internet has been built on code. Cryptocurrencies, blockchains, and zero-knowledge proofs all rely on the hardness of certain mathematical problems. If you can’t solve them, you can’t cheat. But this foundation has a weakness: it assumes computing power grows slowly and predictably. Quantum computing breaks that assumption.…
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MQTT: The Language of the Internet of Things
Introduction: The Need for Lightweight Communication As the Internet of Things (IoT) continues to expand, billions of devices — from smart thermostats to industrial sensors — need a reliable and efficient way to exchange data. Traditional communication protocols are often too heavy, too power-hungry, or too complex for these small, resource-constrained devices. This is…
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CPU Cache and Side-Channel Attacks: A Silent Threat in Modern Computing
1. Introduction: When Speed Becomes a Double-Edged Sword The CPU cache—L1, L2, and L3—is designed to make computing faster. It keeps frequently used data close to the processor, drastically reducing memory latency and improving performance. But this performance boost comes with a critical trade-off: it opens the door to side-channel attacks. These attacks don’t…
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Persistent Memory in SSDs and Its Security Threats
1. Introduction: The Rise of Persistent Memory In recent years, persistent memory technologies have blurred the line between traditional storage and volatile memory. Unlike conventional DRAM, persistent memory retains data even after power is removed, combining low latency, high throughput, and non-volatility. Modern solid-state drives (SSDs) increasingly integrate persistent buffers and caches to improve…
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AI Privacy and Security: Building a Safer Future
The rapid rise of AI and autonomous AI Agents is forcing humanity to face one uncomfortable fact: granting these systems access to personal data is not just a convenience — it’s a major security gamble. Every “yes” you give to an AI service is effectively opening another door to your digital identity. Let’s be…