Types of viruses
Security tips
Cyberattack
Unsafe behaviour
Miscelaneous
100

A malicious program that attaches itself to a file and spreads when the file is opened

Virus

100

Use a long and difficult-to-guess combination to protect your accounts

Strong Password

100

A fraudulent message that tries to trick people into revealing passwords or personal information

Phishing

100

Using the same password for all your online accounts

Reusing passwords

100

The worldwide network that connects millions of computers and devices

Internet

200

Malware that looks like a legitimate program but hides a malicious purpose

Trojan

200

Make a copy of important files in case the originals are lost

Backup

200

An attack that floods a website or server with traffic to make it unavailable

Denial-of-Service

200

Opening links in suspicious emails without checking them first

Clicking suspicious links

200

A computer program used to visit websites

Web browser

300

Malware that spreads automatically between computers without attaching itself to a file

Worm

300

Use an extra verification step in addition to your password when logging in

Two-factor authentication

300

An attack in which a criminal secretly intercepts communication between two parties.

Man-in-the-middle attack

300

Leaving your computer unlocked when you leave your desk

Leaving a computer unlocked

300

A computer that provides services or resources to other computers

Server

400

Malware that secretly monitors a user's activity and collects information

Spyware

400

Protect your network by filtering incoming and outgoing connections.

Firewall

400

An attack that tries many password combinations to access an account

Brute-force attack

400

Connecting an unknown USB device to your computer without checking if it is safe

Using an untrusted USB device

400

A numerical address used to identify a device on a network

IP address

500

Malware that locks or encrypts files and demands money to restore access

Ransomware

500

Keep your operating system and applications updated to fix security problems

Install security updates

500

An attack that exploits a software vulnerability before the developer has released a fix

Zero-day attack

500

Sharing your password with another person

Sharing passwords

500

A weakness in a computer system that an attacker could exploit

Vulnerability