You arrive at the hotel and connect to the local wireless network. A window appears on the screen with a suggestion to update the flash player, you agree. The update is installed, but the computer is no longer quite yours: now it is controlled by professional hackers. They’ll copy your files and emails, save your passwords, and manage your computer without you noticing. In 2014, Kaspersky Lab reported on the Darkhotel project — series of targeted attacks on CEOs and entrepreneurs in Japan, China, Russia, and other countries. Unknown hackers used at least four methods to break into computers. We will analyze these methods and explain how not to become a victim in such situations.