Convolutional neural networks are very important in machine learning. If you want to do computer vision or image recognition tasks, you simply can’t go without them. But it can be hard to understand how they work. In this post, we will talk about the mechanisms behind…
Summary:This article provides an overview of different evasion techniques used to bypass security measures in software or tools. Key takeaways: Counter arguments: Introduction Signature-based Detection bypasses are a simple way to attempt to evade detection from antivirus and endpoint security software, relying on a signature…
The task of building a Natural Language Processing (NLP) text summarizer in one night from scratch is a challenging but rewarding endeavor. This project aims to demonstrate the feasibility of quickly creating a basic NLP summarization tool, using various NLP techniques and algorithms. The summarizer…
I was on an engagement where I simply could not elevate privileges, so I had to become creative and look deep into my old bucket (bucket being my head) of knowledge, and this resulted in some fun stuff. I had found that the client had…
On April 12, a code commit[1] in Chromium get people’s attention. This is a bugfix for some vulnerability in Chromium Javascript engine v8. At the same time, the regression test case regress-1196683.js for this bugfix was also submitted. Based on this regression test case, some…
AWS Startup Security Baseline (AWS SSB) The Amazon Web Services (AWS) Startup Security Baseline (SSB) is a set of controls that create a minimum foundation for businesses to build securely on AWS without decreasing their agility. The controls in this guide are designed with early…
When a programmer presses ctrl-c inside of a command-line program, that program should stop what it’s doing, return to the nearest sensible restart position, and allow you to continue where you left off. This isn’t much different from insisting on “one-button builds,” except it’s an older phenomenon….
This post is an analysis of a file encryption solution that claimed to implement “AES-1024 military grade encryption“. Spoiler alert: I did not break AES, and this work does not concern the security of AES. You may find advanced research regarding this topic. This project started during…
This analysis was the culmination of a ~6 month journey. It is unfortunate, that the software considered the “gold standard” for remote proctored exams is in the current state it is. This post was motivated purely for informational purposes and I do not condone any…
CAP Theorem explained You’ll often hear about the CAP theorem which specifies some kind of an upper limit when designing distributed systems. As with most of my other introduction tutorials, lets try understanding CAP by comparing it with a real world situation. Chapter 1: “Remembrance…
Starting October 28th and fully resolving on October 31st, Roblox experienced a 73-hour outage.¹ Fifty million players regularly use Roblox every day and, to create the experience our players expect, our scale involves hundreds of internal online services. As with any large-scale service, we have service…
10 years ago, systemd was announced and swiftly rose to become one of the most persistently controversial and polarizing pieces of software in recent history, and especially in the GNU/Linux world. The quality and nature of debate has not improved in the least from the…
I recently came up with what I think is an intuitive way to explain Bayes’ Theorem. I searched in google for a while and could not find any article that explains it in this particular way. Of course there’s the wikipedia page, that long article by Yudkowsky, and a bunch…
I decoded a recording I made with the Allen Telescope Array. I used an IQ sample rate of 3.84 Msps when doing this recording because I wanted to see if there were any ranging signals. Usually, ranging signals have a bandwidth of 1.5 MHz or…
Imagine that you wrote a program for a problem that is very easy to solve. Each thread does its own piece of work, and the threads don’t have to work together except to combine their results at the end. The more cores it runs on,…
In order to understand the differences between automatic differentiation libraries, let’s talk about the trade-offs that were made by the people who made them. I would say that none of these libraries are better than the other. They all make engineering decisions based on the…
When you start using a new reverse engineering platform for the first time, it can be hard to get used to it. It’s too much information. I don’t know what I should be looking at. A window is a place where you can look out…
Hello there. I took a break from my Internet activity but here I am again. In this piece, I am writing about Fully Convolutional One-Stage Object Detection (FCOS), which was published after YOLOv3 but before YOLOv4. Therefore, I feel like it is important to look…
The dynamics of staking on Ethereum under PoS are complicated by the increased variation in validator income.
Introduction Apple designed the iOS platform with security at its core. When we set out to create the best possible mobile OS, we drew from decades of experience to build an entirely new architecture. We thought about the security hazards of the desktop environment, and…
A few months ago we saw a post on the r/programminghorror subreddit: A developer describes the struggle of identifying a syntax error resulting from an invisible Unicode character hidden in JavaScript source code. This post inspired an idea: What if a backdoor literally cannot be seen and thus evades detection even from thorough code reviews?…
Fizz Buzz is a common challenge given during interviews. The challenge goes something like this: Write a program that prints the numbers from 1 to n. If a number is divisible by 3, write Fizz instead. If a number is divisible by 5, write Buzz…
Why should you learn at least the basic Architecture Patterns as Software Engineer? I believe there are many articles answering to this question, but I will give you a few reasons to consider. First of all, if you know the basics of architecture patterns, then…
Bayesian histograms are a stupidly fast, simple, and nonparametric way to find how rare event probabilities depend on a variable (with uncertainties!). My implementation of Bayesian histograms is available as the Python package bayeshist. So if you think this could be useful, just install the package…
Let’s dive into the interesting details, breaking down the general ideas into 18 concrete container security best practices that you can apply in your DevOps workflows. A complex stack Containers’ success is often fueled by two really useful features: They are a really convenient way to…
Self-Parking Car in 500 Lines of Code TL;DR In this article, we’ll train the car to do self-parking using a genetic algorithm. We’ll create the 1st generation of cars with random genomes that will behave something like this: On the ≈40th generation the cars start…
Introduction It might be a bit funny to call this post “Hello IPv6”, since the first draft of IPv6 was published in late 1998; however, it is ratified as a standard only in 2017. When I first heard about IPv6 many years ago, I thought…
People sometimes wonder how the set of primitives in BQN was chosen. Outsiders to array programming might assume that the “big idea” of APL is just to take the most common tasks and write them with symbols instead of names—even Dijkstra said something like this,…
Convolutional neural networks are very important in machine learning. If you want to do computer vision or image recognition tasks, you simply can’t go without them. But it can be hard to understand how they work. In this post, we will talk about the mechanisms…
Summary: In this article we will demonstrate how to trigger an automated end to end data loading, transformation and visualization process using Google Cloud Platform. At the end of this exercise a Cloud Data Fusion Pipeline execution will be trigger automatically with a Cloud Function…