Imagine someone could turn your laptop, smartphone, or even your gaming console into a tracking device without your knowledge. Our research team discovered a way this can happen through Apple’s Find My network The Find My network uses over a billion Apple devices worldwide. We found a security problem that lets hackers use this system to track almost any device with Bluetooth capabilities - not just Apple products. We call this attack “nRootTag.”

In this post, we’ll cover how to prevent ransomware and provide resources & code for 11 different ransomware prevention use cases to ensure preventative controls are in place to prevent against types of ransomware attacks targeting AWS S3.

The internet is insecure by default. Attackers can intercept and modify traffic, so we need a way to secure communication and verify the server’s identity. Encryption ensures data privacy, but without verification, hackers could impersonate a legitimate website, intercepting traffic while still using encryption. This is why TLS/SSL combines encryption with authentication.

When consuming Kafka in a consumer group, the offset each consumer has bit read the message and ack it is recorded by Kafka. When they crashed or restart, they can resume from the commited ack position. But what happen if a record has been processed by consumer but failed to send the ack, the app will consume the record again on restarting. How can we somehow do 2 thing: commit the offset and the result of operation somehow in a single atomic operation. Enter Kafka transactions allow.

We usually don’t include this tutorial style link but this one is really interesting to see. We will learn how transforms, perspective, and stacked grids can create a fully addressable 3D space and push the boundaries of what’s possible with pure CSS

In this tutorial, we learn how to create a simplified clone of the mobile game Crossy Road with React Three Fiber. The goal of the game is to move a character through an endless path of static and moving obstacles. We have to go around the trees and avoid getting hit by a car or a truck. We start with the basic setup: setting up the scene, camera, and lighting. We learn how to draw the player and the map’s trees, cars, and trucks. We cover how to animate the vehicles and add event handlers to move the player through the map. Finally, we add logic to detect collisions between the player and the cars.

A very command problem when we need to re-present a relationship in databsae such as family, friend. Can come in very handy to write a single SQL query to find relationship instead of building them from the app level

XOR is every where. We use them in Linux permission: umask, chmod. We use them in Cryptography. We will learn about their hardware implementation, about their usage and all kind of trick to use them efficiently.

Write up when following “Build a large language model from scratch” book.

Den has been running podcast for half a decade. He use WhistpeX, run it locally and build a workflow to transcibe his podcast to text. He shared with us the setup. I think local ai is really useful and worth to explorer the self hosted path. It is much easiser to self hosted than we think even

Go specific but come in very handy when working with Go app.

FastDOOM was a port of DOOM but it is 30% faster. On some complicated map, it’s even 48% faster. We will dive into the secret sauce of the technique that is used to optimized it. very low level thing like use the right assembly instruction to make code run in fewer instructions.

I recently tried to optimize convolutions using SIMD instructions, but what I thought would be a simple task ended up taking me days, with issue after issue popping up one after another. Some of them make sense in hindsight, but others were utterly baffling. While the specific examples are for direct convolution, these considerations apply to pretty much any code with a hot loop.