Endpoint security refers to a methodology of protecting the corporate network when accessed via remote devices such as laptops or other wireless and mobile devices. Each device with a remote connecting to the network creates a potential entry point for security threats. Endpoint security is designed to secure each endpoint on the network created by these devices.

Dynamic Link Libraries (DLLs) provide a series of functions and routines to other applications and/or libraries that the latter do not have by themselves. This is frequently used in Windows. Identical routines used by different software applications need not use their own code. This saves system resources.
A data breach is an incident wherein information is stolen or taken from a system without the knowledge or authorization of the system’s owner. A small company or a large organization may suffer a data breach. Stolen data may involve sensitive, proprietary, or confidential information, such as credit card numbers, customer data, trade secrets or matters of national security.
Cybersecurity refers to the preventative techniques used to protect the integrity of networks, programs and data from attack, damage, or unauthorized access.
Cyber threat hunting is "the process of proactively and iteratively searching through networks to detect and isolate advanced threats that evade existing security solutions."[1] This is in contrast to traditional threat management measures, such as firewalls, intrusion detection systems (IDS), and SIEM Systems, which typically involve an investigation after there has been a warning of a potential threat or an incident has occurred.

A cyber attack is an attempt to damage, disrupt, or gain unauthorized access to a computer, computer system, or electronic communications network.

Crimeware is a general term for software used to perpetrate crime, such as stealing personal identities, money or proprietary information. Crimeware can spread by way of viruses, Trojan horse programs, worms, spyware, or adware.
Compromise Assessment will tell you if you are currently compromised or if there has been past attacker activity. You will also clearly understand the extent and the severity of the compromise. Alerts are confirmed before reporting to minimize false positives.
A command-and-control [C&C] server is a computer controlled by an attacker or cybercriminal which is used to send commands to systems compromised by malware and receive stolen data from a target network. Many campaigns have been found using cloud-based services, such as webmail and file-sharing services, as C&C servers to blend in with normal traffic and avoid detection.
Backdoor programs are applications that allow cybercriminals or attackers to access computers remotely. Backdoors can be installed in both software and hardware components. Many backdoor programs make use of the IRC backbone, receiving commands from common IRC chat clients.