Browse Definitions :
Definition

locked down device (LDD)

A locked down device (LDD) is a mobile device, typically a smartphone, that is shipped by a vendor with the ability to accept only the SIM card that originally came with it.

Vendors lock down devices before shipment to maximize their profit by making it difficult for users to switch carriers. For example, AT&T might lock a smartphone so that a user cannot easily switch to Verizon (or vice-versa). When corporations issue mobile devices to their employees in the corporate owned personally enabled (COPE) model, locking down each device can help to control support and management costs by discouraging unauthorized device exchanges among employees.

Some people try to unlock their smartphones so that they can accept SIM cards other than the original. Proponents of the practice argue that consumers should be free to change carriers when a subscription contract expires without having to discard hardware that they purchased outright. Nevertheless, smartphone unlocking was declared illegal in the United States in January 2013, overturning an earlier decision by the Copyright Office. The law applies to all devices purchased on or after October 28, 2012.

Device unlocking differs from jailbreaking, which involves removing certain manufacturer or carrier restrictions from a device, such as running a privilege escalation attack to alter the manufacturer's OS (operating system) by installing a custom kernel.

This was last updated in June 2013
SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • email spam

    Email spam, also known as junk email, refers to unsolicited email messages, usually sent in bulk to a large list of recipients.

  • security policy

    A security policy is a document that states in writing how a company plans to protect its physical and information technology (IT...

  • shadow password file

    A shadow password file, also known as /etc/shadow, is a system file in Linux that stores encrypted user passwords and is ...

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • bare-metal restore

    A bare-metal restore (also referred to as bare-metal recovery or bare-metal backup) is a data recovery and restoration process ...

  • mSATA SSD (mSATA solid-state drive)

    An mSATA SSD is a solid-state drive (SSD) that conforms to the mSATA interface specification developed by the Serial ATA (SATA) ...

  • network-attached storage (NAS)

    Network-attached storage (NAS) is dedicated file storage that enables multiple users and heterogeneous client devices to retrieve...

Close