A malicious program that attaches itself to a file and spreads when the file is opened
Virus
Use a long and difficult-to-guess combination to protect your accounts
Strong Password
A fraudulent message that tries to trick people into revealing passwords or personal information
Phishing
Using the same password for all your online accounts
Reusing passwords
The worldwide network that connects millions of computers and devices
Internet
Malware that looks like a legitimate program but hides a malicious purpose
Trojan
Make a copy of important files in case the originals are lost
Backup
An attack that floods a website or server with traffic to make it unavailable
Denial-of-Service
Opening links in suspicious emails without checking them first
Clicking suspicious links
A computer program used to visit websites
Web browser
Malware that spreads automatically between computers without attaching itself to a file
Worm
Use an extra verification step in addition to your password when logging in
Two-factor authentication
An attack in which a criminal secretly intercepts communication between two parties.
Man-in-the-middle attack
Leaving your computer unlocked when you leave your desk
Leaving a computer unlocked
A computer that provides services or resources to other computers
Server
Malware that secretly monitors a user's activity and collects information
Spyware
Protect your network by filtering incoming and outgoing connections.
Firewall
An attack that tries many password combinations to access an account
Brute-force attack
Connecting an unknown USB device to your computer without checking if it is safe
Using an untrusted USB device
A numerical address used to identify a device on a network
IP address
Malware that locks or encrypts files and demands money to restore access
Ransomware
Keep your operating system and applications updated to fix security problems
Install security updates
An attack that exploits a software vulnerability before the developer has released a fix
Zero-day attack
Sharing your password with another person
Sharing passwords
A weakness in a computer system that an attacker could exploit
Vulnerability