What Is Hacking and How Does It Affect Security?
Hacking is the technical manipulation of digital systems to perform actions that were not intended by the system designers. This could be malicious, such as stealing data or deploying malware, or ethical, like penetration testing designed to uncover security flaws.
Hackers use a variety of tools and techniques to breach defenses, exploiting vulnerabilities in software and poor security practices for unauthorized access to computers, smartphones, tablets, IoT devices, networks or even entire computing systems. The motivations for hacking range from financial gain to activism and espionage. Black hat hackers engage in malicious activities such as hacking into websites and stealing personal information for financial gain, cyber extortion, or identity theft. Other hackers, known as hacktivists, seek notoriety and respect by stealing and releasing sensitive information from organizations they oppose.
As the world’s cybercrime economy becomes industrialized and automated, many bad actors rely on subscription-based attack kits and agentic AI tools available for sale on dark web marketplaces. This has turned hacking into a sophisticated threat ecosystem that’s often impossible to detect using traditional filters.
To understand how hackers operate, it helps to consider the phases of a typical attack: reconnaissance, scanning and enumeration, gaining access, avoiding detection, and maintaining access. The attacker’s ability to hide their footprint through fileless attacks — exploiting software weaknesses or vulnerabilities in third-party software that runs on a victim’s computer — makes it even harder for security teams to keep pace with the threat.