Cybersecurity Glossary

To implement effective cybersecurity solutions built for the digital world, it’s important to understand common industry concepts and definitions. This glossary provides you with cybersecurity terms to be aware of as you look to protect your organization against cyber threats.

What is cloud email?

Cloud email—such as Gmail—is email hosted by a cloud-based email service provider. It’s an alternative solution for organizations that don’t want to host email services on their own infrastructure. Since cloud email is stored and hosted in the cloud, its major benefit is the ability for users to access their email from anywhere—without needing to connect to a server.

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What is a cloud email security supplement (CESS)?

Cloud email security supplements, or CESSs, provide additional security measures specific to phishing-related attacks. They are typically utilized in particular use cases where organizations are regularly facing specific yet sophisticated threats that are hard to detect. CESSs are beneficial for organizations that need real-time scanning of inboxes or require enhanced detection and remediation methods for email-related cyberattacks. With the right CESSs in place, organizations can benefit from an additional layer of security that specifically addresses threats that are prevalent to their business.

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What is cloud security?

Cloud security, also referred to as cloud computing security, is the discipline of protecting cloud-based systems from cyberthreats, including their data, infrastructure, and applications. Cloud security encompasses a collection of technology solutions, processes, and controls used by cloud service providers to defend against internal and external threats. With the growing popularity of cloud services and applications, cloud security, particularly for enterprises, has increased in importance.

What is computer vision?

Computer Vision is a field of computer science that uses Artificial Intelligence (AI) to understand visual data (imagery). If AI is used to “think” by analyzing and interpreting data inputs, Computer Vision is used to “see” by analyzing and interpreting visual inputs.

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What is a cousin domain?

A cousin domain—also referred to as a lookalike domain—is a domain that deceptively resembles the name of another website. Cousin domains use common typos ( or numbers ( in an effort to trick fast-moving Internet users into thinking they’re on a legitimate website. Once users land on the cousin domain, the hackers begin carrying out phishing attacks on the user.

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What is credential harvesting?

Credential harvesting is a specific type of cyber attack targeting login credentials such as usernames and passwords. Popular credential harvesting tactics include email phishing, malicious websites, or browser extensions. Once the credentials are obtained, cybercriminals then use them to gain access to sensitive information—leaving organizations susceptible to security threats and fraudulent activity.  

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What is credential stuffing?

Credential stuffing is a form of cyberattack that involves using breached login credentials to try to access other unrelated services and applications. For example, if there is a data breach at a major retail chain, hackers may use the credentials obtained in the breach for attempted logins for a financial services application.

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What is cryptojacking?

Cryptojacking is a type of cyberattack in which hackers infiltrate a user’s device and secretly use computing resources to mine cryptocurrencies. Cryptocurrency mining demands significant computing power, but offers hackers the reward of earning cryptocurrency or traditional currency. While cryptojacking occurs without the knowledge of the victim, it often diminishes the performance of the infected device, causing it to run slowly, crash, or heat up. Cryptojacking continues to rise in popularity with the growth of digital currencies. Cryptojacking schemes often begin with a phishing email.

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What is CryptoLocker?

CryptoLocker is a ransomware variant and type of malware that targets Windows computers and encrypts files. As with other forms of ransomware, once an infection takes place, hackers demand a ransom in exchange for a decryption key. CryptoLocker first arrived on the scene in 2013. Delivered via phishing emails, hackers dupe victims into downloading malicious attachments containing Trojans. Defenses against CryptoLocker include firewalls, anti-virus programs, anti-phishing solutions, anti-malware solutions, and user awareness training.

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What is a cyberattack?

A cyberattack is any attempt by nefarious individuals to target an organization’s IT infrastructure, networks, systems, or devices to either steal, expose, or destroy information or assets. When carried out successfully, cyberattacks impact your business in more ways than one. From increasing the likelihood of a future cyberattack to putting your organization in legal jeopardy, cyberattacks have the ability to inflict serious harm across your organization if left unchecked.

Some of the more common types of cyberattacks include denial-of-service (DoS), man-in-the-middle (MITM), business email compromise (BEC), phishing, spear phishing, ransomware, and DNS spoofing. In order to prevent cyberattacks, it’s important to educate your staff on cybersecurity best practices. Utilizing AI-based cybersecurity solutions can also enhance your security posture and make it easier to detect and neutralize threats before they cause damage.

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