Mobile security
As smartphones are a permanent point of access to the internet (mostly on), they can be compromised as easily as computers with malware. A malware is a computer program that aims to harm the system in which it resides. Trojans, worms and viruses are all considered malware. A Trojan is a program that is on the smartphone and allows external users to connect discreetly. A worm is a program that reproduces on multiple computers across a network. A virus is malicious software designed to spread to other computers by inserting itself into legitimate programs and running programs in parallel. However, it must be said that the malware are far less numerous and important to smartphones as they are to computers.
Vandalism
Cybervandalism is vandalism on the internet. For example, vandalism on Wikipedia involves adding questionable content, removing content, or changing content in order to make it questionable, generally with the objective of harming Wikipedia's reputation. Forms of online vandalism have been recorded, the most common of which is website defacement. Vandalism on web maps has been called "cartographic vandalism". Another form of cybervandalism is creation of malware, such as viruses, Trojan horses, and spyware, which can destroy computers, and in some cases even steal money from the computer owners, wherein the malware creator blackmails the owner to pay them money or give out their credit card number or else they won't get the use of their computer back. Some even go as far as making a time limit where if the owner doesn't pay or give personal information within a certain time, the malware permanently destroys the computer.