More from The National:
Thursday's best photos: From rain in Abu Dhabi to Swan Lake in Sydney
Wednesday's best photos: From a heatwave in Vietnam to a fire festival in Edinburgh
Tuesday's best photos: From protests in Texas to a volcano in Indonesia
Monday's best photos: From a makeshift cinema in Rafah to horse riding in Versailles
Sunday's best photos: From ritual festival in Pakistan to schoolchildren in Gaza
Know your cyber adversaries
Cryptojacking: Compromises a device or network to mine cryptocurrencies without an organisation's knowledge.
Distributed denial-of-service: Floods systems, servers or networks with information, effectively blocking them.
Man-in-the-middle attack: Intercepts two-way communication to obtain information, spy on participants or alter the outcome.
Malware: Installs itself in a network when a user clicks on a compromised link or email attachment.
Phishing: Aims to secure personal information, such as passwords and credit card numbers.
Ransomware: Encrypts user data, denying access and demands a payment to decrypt it.
Spyware: Collects information without the user's knowledge, which is then passed on to bad actors.
Trojans: Create a backdoor into systems, which becomes a point of entry for an attack.
Viruses: Infect applications in a system and replicate themselves as they go, just like their biological counterparts.
Worms: Send copies of themselves to other users or contacts. They don't attack the system, but they overload it.
Zero-day exploit: Exploits a vulnerability in software before a fix is found.