HackDp

First Off Many Americans were still unfamiliar with computer viruses twenty years ago, as was the public's knowledge of the methods employed to unleash them. That would change dramatically with one attack, though. A turning point in the history of cybersecurity was reached when the Melissa virus surfaced in late March of 1999. Melissa's Origin Story The Melissa virus was created by New Jersey-based programmer David Lee Smith. Smith uploaded a file to the "alt.sex" newsgroup on the Internet by taking over an America Online (AOL) account. Numerous free passwords to adult-content websites with a cost were advertised in the message. A virus infected the PCs of the users when they downloaded the document and opened it with Microsoft Word. The virus first appeared on March 26, 1999, and it quickly swept throughout the Internet. How Melissa Worked The Melissa virus operated through a combination of social engineering and technical exploitation. When a user opened the infect

Pegasus spyware, developed by the Israeli-based NSO Group, has become one of the most infamous and controversial surveillance tools in recent years. Its advanced capabilities, particularly its zero-click exploit mechanism, have raised significant concerns about privacy, freedom of speech, and human rights. This blog aims to provide a comprehensive understanding of Pegasus spyware, its workings, its usage by various governments, and its broader implications. What is Pegasus Spyware? Pegasus spyware is a highly sophisticated piece of malware designed to infiltrate smartphones and other devices to extract sensitive information without the user's knowledge. Developed by the NSO Group, Pegasus can read messages and emails, listen to calls, capture passwords, track location, and even activate the camera and microphone of the infected device. The spyware is particularly potent due to its zero-click exploit, which allows it to install itself without any action from the victim. For instanc

Understanding AppSec Bugs Application Security (AppSec) bugs are critical vulnerabilities within web applications that can be exploited by attackers. These security flaws can compromise an application's integrity, confidentiality, and availability. To exploit these bugs, attackers identify weaknesses, craft specific attack vectors, and utilize various tools and techniques. This blog will delve into common AppSec bugs, their exploitation, and prevention strategies. Various AppSec Bug Types SQL Injection (SQLi) Definition: SQL injection happens when an application uses user-supplied data without doing the necessary escape procedures or validation. Attackers can now alter the SQL query as a result. Categories: In-Band SQLi: The attacker executes and retrieves results (such as error-based and union-based SQLi) via the same communication channel. Inferential SQL injection (also known as blind SQL injection) uses payloads and application behavior modifications to infer data from the a

 In the rapidly evolving digital landscape, cybersecurity has become a critical field. Mastering it requires a solid understanding of both theoretical concepts and practical applications. This blog aims to provide a comprehensive guide to both, helping you build a robust foundation in cybersecurity. The Basics of Cybersecurity CIA Triad: Confidentiality, Integrity, and Availability The foundation of cybersecurity is the CIA Triad. It guarantees that information is accurate, safe, and accessible when required. Confidentiality: This principle makes sure that only people with permission can access sensitive data. To preserve secrecy , methods like encryption and access control systems are employed. Integrity: Integrity ensures that data is reliable and accurate. To stop data manipulation, techniques like hashing, digital signatures, and checksums are used. Availability: This guarantees that resources and information are available to authorized users at all times. Availability is preserv