Virus: This is a type of program that duplicates itself and moves to other files or systems, often causing damage along the way.
Malware: This term refers to any harmful software that disrupts or gains unauthorized access to computer systems. It's like a collective term for all kinds of digital troublemakers.
Ransomware: Here we have a specific type of malware that locks up files or even entire computer systems and demands payment (a ransom) for unlocking them. It's like a digital hostage situation for your data.

Threat: This is any possible danger or harmful event that could cause trouble by taking advantage of weaknesses in security.

Vulnerability: Think of vulnerabilities as the weak spots or gaps in your security armour. These are the areas where threats can sneak in or cause damage. Risk: Risk is like the chance of a threat finding and exploiting one of those vulnerabilities. It's about how likely it is to happen and how bad the consequences might be.

Phishing: Phishing is a type of cyberattack where scammers use fake emails or messages to trick people into giving away personal information.

Example: You might get an email that looks like it's from your bank, asking you to click a link and enter your login details. But if you do, you're actually giving your info to the scammer.

Firewalls act as a barrier between your computer network and the outside world, like a gatekeeper. They monitor incoming and outgoing traffic based on a set of rules. If data trying to enter or leave your network doesn't meet those rules (like being from an unauthorized source or containing suspicious content), the firewall blocks it. This helps prevent unauthorized access, viruses, malware, and other threats from compromising your network's security.

A VPN, or Virtual Private Network, is a tool that encrypts your internet connection, shielding your online activities from prying eyes. It is  used to enhance privacy, security, and access to restricted content by creating a secure connection to the internet through servers located elsewhere. VPNs are commonly employed by individuals and organizations to safeguard sensitive data and bypass geographical restrictions.

A secure password is a unique combination of characters, symbols, and numbers that's hard for others to guess or crack. It should be long enough to resist brute force attacks and avoid common phrases or easily guessable patterns. Regularly updating and not sharing passwords enhances security.

Resampling is typically performed in data analysis when there's a need to adjust the frequency or duration of data points, often to match a desired timeframe or to reduce noise. It's a fundamental technique in statistics and signal processing, aiding in making data more manageable or representative without infringing on copyright concerns.

Common techniques for securing a computer network include implementing strong passwords, using encryption for data transmission, and regularly updating software and security patches.

Two-factor authentication adds an extra layer of security to your online accounts, requiring a second form of verification, like a code sent to your phone. It's essential as it greatly reduces the risk of unauthorized access, safeguarding your personal information from potential hackers.