The collection of selected articles from the Hacker magazine describes the technology for searching and exploiting vulnerabilities, sandbox detection and anti-debugging, managing processes in the Microsoft Windows operating system and masking them. Describes methods of data exchange between malicious programs and the control server. Specific examples are given of writing a Windows kernel mode driver, intercepting application control via WinAPI, and creating a stealer to obtain passwords from Chrome and Firefox browsers. Techniques for obfuscation of PowerShell code are described. Separate sections are devoted to hacking iPhone and Apple Watch.