CompTIA CySA+ complete index with explanation

mean time between failures (MTBF)

The estimated amount of time a device will operate before a failure occurs.

mean time to repair (MTTR)

The average time required to repair a single resource or function.

measured boot

A term that applies to several technologies that follow the Secure Boot standard.

Memdump

A free tool that runs on Windows, Linux, and Solaris that simply creates a bit-by-bit copy of the volatile memory on a system.

memorandum of understanding (MOU)

Document that, while not legally binding, indicates a general agreement between the principals to do something together.

memory dumping

Analyzing the entire memory content used by an application.

MicroSD HSM

A hardware security module that connects to the microSD port on a device that has such a port.

microservices

A variant of the service-oriented architecture (SOA) structural style that arranges an application as a collection of three loosely coupled services. The focus is on building single-function modules with well-defined interfaces and operations.

MITRE ATT&CK

Knowledge base of adversary tactics and techniques based on real-world observations. It is an open system, and attack matrices are created for various industries.

mobile code

Software that is transmitted across a network to be executed on a local system.

mobile device management (MDM)

A system that is used to control mobile device settings, applications, and other parameters when those devices are attached to the enterprise.

Modbus

A master/slave protocol used in building automation that uses port 50.

multifactor authentication (MFA)

An authentication process that requires more than a single authentication factor.

multihomed firewall

A type of firewall with three interfaces: one connected to the untrusted network, one connected to the internal network, and one connected to the DMZ.

National Information Assurance Certification and Accreditation Process (NIACAP)

A standard set of activities and general tasks, along with a management structure, to certify and accredit systems that maintain the information assurance and security posture of a system or site.

near field communication (NFC)

A short-range type of wireless transmission that is used in payment cards such as Apple Pay and Google Pay.

Nessus Professional

A proprietary network scanner developed by Tenable Network Security.

NetFlow

A technology developed by Cisco that is supported by all major vendors and can be used to collect and subsequently export IP traffic accounting information.

network access control (NAC)

A service that goes beyond authentication of the user and includes examination of the state of the computer the user is introducing to the network when making a remote-access or VPN connection to the network.

next-generation firewall (NGFW)

A category of devices that attempt to address traffic inspection and application awareness shortcomings of a traditional stateful firewall, without hampering the performance.