External Threats - Word Drop

Accessing a system without permission is called ______ access, also known as black hat hacking. Malware is software written to damage a system, steal data or carry out unwanted actions. Viruses, worms and Trojans are types of malware, while ______ encrypts files and demands payment to unlock them. A ______ is a group of infected computers that an attacker controls remotely.

A ______ attack overloads a server with data from one computer, so legitimate users cannot get a response. ______ is a fake email, text or phone call that pretends to come from a trusted organisation. ______ redirects users to a fraudulent website by compromising a ______ server, which links website names to IP addresses. Social engineering is the act of ______ a trusted person to obtain confidential information.

______ is looking over someone's shoulder to read their password or PIN. In a ______ attack, an attacker secretly intercepts the communication between two devices. A natural disaster such as a ______ can also threaten systems from outside the organisation.