Glossary

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 Cyberbullying is harassment that occurs online, typically through social media, email, or messaging. The harm to the victim is intentional and usually repeated, and can be perpetrated by an individual or a group. Cyberbullying can be more harmful than in-person bullying because it can happen anywhere at any time-it doesn't rely on in-person interactions. Cyberbullying can also overlap with in-person bullying.
 [Cybersecurity](https://brave.com/glossary/cybersecurity/)
 Cybersecurity is the practice of protecting computing devices and networks from external threats. For purposes of this article, "cybersecurity" refers to practices that IT and security professionals use to protect the systems they're in charge of, or whole groups of employees. The related term "security" is more general, and can also refer to practices an individual might take to stay safe online or a business might use to secure the buildings they use.
+[Cyberstalking](https://brave.com/glossary/cyberstalking/)
+Cyberstalking is repeated, premeditated harassment that occurs primarily online or via other electronic tools, and can involve intimidation and threats to personal safety.
 ## D
 [Dark Web](https://brave.com/glossary/dark-web/)
 The Dark Web is the portion of the Internet that can only be accessed through specific software. Most casual surfing of the Web takes place on a small piece (5-10%) of the total World Wide Web; this is sometimes called the Surface Web. The other 90-95%-the Deep Web-is basically all the content not indexed by search engines. The Dark Web, by turn, is a fractional part of the larger Deep Web, and requires special browsers to view and navigate.
 [Open source](https://brave.com/glossary/open-source/)
 Open-source software is software whose source code-the instructions that define what the software does-is published and freely available. The opposite of open source is closed source. Source code is human-readable, and software developers create software by writing it. To run software on a device, though, the source code has to be transformed into a form that's mostly unreadable to humans. That unreadable form is what you get when you download an app. Open-source software is often developed in a collaborative manner, and considered a public good, free for anybody to use. The Brave Browser, Linux operating system, and OpenOffice are examples of open-source software.
 ## P
+[Partitioning](https://brave.com/glossary/partitioning/)
+Partitioning is the process of separating an individual's browsing data from one website to another, as a countermeasure against the trackers embedded in third-party ads. These trackers will otherwise attempt to identify individuals and track their activity across websites.
+[Passkey](https://brave.com/glossary/passkey/)
+A passkey is a unique secret code that gives you secure access to a system or online service. Each passkey is specific to the user and the service; passkeys can't be reused for multiple logins. Once a passkey is set up, the user can optionally add a second factor of authentication-like a fingerprint, face scan, or PIN-to enhance the security of the login experience.
 [Password manager](https://brave.com/glossary/password-manager/)
 A password manager is software that stores the usernames and passwords to your online accounts. It can automatically fill in usernames and passwords on login pages, generate new random passwords, and sync your passwords across multiple devices. Using a password manager can save you a lot of hassle and-when used properly-dramatically improve your privacy, safety, and security online.
 [Password strength](https://brave.com/glossary/password-strength/)
 Password strength is the measure of the security of a password, typically based on length, complexity, and uniqueness. The strength of a password is often described in terms of how long it would take to correctly guess (or "crack") that password using current-day software and hardware tools.
 [Peer-to-peer network](https://brave.com/glossary/peer-to-peer/)
 A peer-to-peer (P2P) network is a collection of connected computers with no single controller. Each participating computer, called a peer or a node, is both a user and a provider of resources. Peers contribute to a P2P network by sharing resources such as storage space, processing capabilities, and bandwidth. A P2P network is decentralized, which makes it different from the traditional client/server arrangement where a server only provides content and a client only uses content.
+[Penetration testing](https://brave.com/glossary/penetration-testing/)
+Penetration testing is a process that audits the security of a system or network by simulating a cyber-attack. The goal of penetration testing is to safely and legally identify potential points of vulnerability in a system so weaknesses can be addressed before they're exploited by real attackers. Penetration testers often use the same tools and approaches that attackers use, and test all aspects of the system, including hardware, software, physical security, and staff training and activity.
 [Personal data](https://brave.com/glossary/personal-data/)
 In a digital setting, personal data is information that can be used to describe attributes of-or even identify-an individual. This data includes information that directly identifies an individual, such as name, email address, or social security number. Personal data can also include less obvious types of information, such as IP address, browser cookies, geolocation data, or biometric data that-when combined-can uniquely identify someone.
 [Phishing](https://brave.com/glossary/phishing/)
 ## W
 [WebRTC](https://brave.com/glossary/webrtc/)
 WebRTC, an abbreviation for Web Real-Time Communication, is an Internet protocol that enables audio and video communication directly in Web browsers, as well as the exchange of data files. WebRTC supports applications like video conferencing (e.g. Zoom meetings), communication with Internet enabled devices (e.g. smart thermostats), online multi-person gaming, and more. WebRTC capabilities are embedded within the user's chosen browser, so there's no need to install or open separate software in order to connect with other people or devices.
+[Whitelist](https://brave.com/glossary/whitelist/)
+A whitelist is a list of pre-approved entities or resources that are deemed safe or acceptable. A whitelist of entities can indicate who has access to a system or is safe to exchange communication with. A whitelist of resources may contain websites, software, or applications that have been identified as safe to use. Use of a whitelist enhances online security by preventing unwanted interaction with hackers, phishing, or malware-related activities.