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It was the year 2019. Our laboratory received a rather unusual hard drive for our time, the QUANTUM FIREBALL Plus KA with a capacity of 9.1GB. According to the owner, the failure occurred back in 2004 due to a malfunctioning power supply, which took the hard drive and other PC components with it. What followed were visits to various service centers […]
TL; DR: JSONB can greatly simplify database schema development without compromising query performance. Introduction Let's provide a classic example, probably one of the oldest use cases in the world of relational databases: we have an entity, and we need to store certain properties (attributes) of this entity. However, not all instances may have the same set of properties, and furthermore, in […]
There is a quite interesting document on CIS Controls that discusses Information Security using the Pareto principle (80/20). This principle states that 20% of protective measures yield 80% of the results in terms of a company's security. After reviewing this document, many security professionals discover that when selecting protective measures, they do not start with the most effective ones. The document highlights 5 key measures […]
Colleagues from the PR department have been collecting case studies for several years involving our corporate-class equipment. A significant portion of these are projects in the hospitality sector. This is due to the fact that this area is one of the key components of TP-Link's project direction, and such cases often turn out to be the most interesting from a professional standpoint. On typical hotel requirements […]
Another day began as expected for a winter day in a short week. Classic tasks were pouring into the task manager — "I sent a letter to Vasily Ivanovich at Sportloto yesterday, instead of Ivan Vasilyevich at Loto-million, where I wrote all sorts of inappropriate things about Vasily Ivanovich, please make sure he doesn't read the letter" or "last year we optimized […]
When I wrote the article 'How to save your own and others' time in interviews, or a little about HR misconceptions' almost a year ago, I assumed the good faith and interest of both parties in a long-term partnership (mutual gain, win-win, all that). However, the reality of the past year shows that the situation in the market is gradually changing for the worse for employees, and […]
In libjpeg-turbo, a library for encoding and decoding images in the JPEG format, a vulnerability (CVE-2019-2201) has been identified that leads to an integer overflow and subsequent heap corruption when processing specially crafted JPEG files. This vulnerability could potentially allow for the creation of an exploit to execute code in the system (the attack requires processing a very large image with a resolution of […
Paramount Pictures has listened to the fans of the Sonic gaming universe and completely redesigned the movie version of the famous supersonic hedgehog. You can see his new look in the latest trailer for the film 'Sonic the Hedgehog.' Recall that earlier this year, the studio released the debut trailer for the film, which faced a wave of criticism from fans. The hedgehog shown there was not only far […
In the previous article, we explored RabbitMQ clustering for achieving fault tolerance and high availability. Now, let’s dive deep into Apache Kafka. Here, the unit of replication is a partition. Each topic has one or more partitions. Within each partition, there is a leader with followers or without them. When creating a topic, the number of partitions and the replication factor are specified. A common value is 3, this […
While investigating cases related to phishing, botnets, fraudulent transactions, and criminal hacker groups, experts at Group-IB have been using graph analysis for many years to uncover various kinds of connections. Different cases have their own datasets, their own connection detection algorithms, and interfaces tailored to specific tasks. All of these tools were internally developed by Group-IB and were accessible only to our employees. […
Federal Law No. 152 "On Personal Data Protection" applies to all existing subjects: individuals and legal entities, federal government authorities, and local self-government bodies. In fact, this law applies to any organizations processing information and personal data of Russian citizens, regardless of ownership form and organization size. Sometimes, an organization may unexpectedly discover implicit personal information systems […]
Hello, Habr! What should one study? Should I pursue computer science or learn the skills of a software engineer? These questions are very relevant today. So, what will you choose? People just starting their journey in the IT field and planning to enroll in a technical university or simply seeking programming courses often encounter an overwhelming amount of […]