IMSI catcher

IMSI catcher

A cellular wiretapping device that simulates a cell tower. Pronounced "im-zee catcher," it logs the phone's International Mobile Subscriber Identity number (IMSI) and functions like a man-in-the-middle attack, relaying voice, text and data traffic between the real cell tower and the target device. See IMSI.
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connecting to the fake tower, at which time the IMSI catcher disabled
IMSI catcher capabilities include the ability to monitor content as
Contract notice: Eu-0815-01 - vehicle-based system imsi catcher.
An IMSI catcher (International Mobile Subscriber Identity) is a telephony eavesdropping device for monitoring mobile phone traffic and movement of mobile phone users.
The scope of supply is an integrated system, turnkey and no additional charges for the Administration, including all activities / services and materials in support necessary to carry out functions of IMSI Catcher, monitoring and locating terminals mobile radio through the use of a single transportable kit, usable and powered by commercial vehicles, as specified in the technical specifications.
335) To address these network vulnerabilities, however, because all parties' surveillance technology exploit the same network vulnerabilities, policymakers will have to grapple with the tension inherent in facilitating "lawful" IMSI catcher use by law enforcement and prohibiting unlawful use by a host of bad actors.
These switches could also be used to bar the device from connecting to IMSI catchers.
IMSI catchers can be installed just about anywhere and thus offer a convenient way for police and secret services to listen in.
The switches can also be used to bar the device from connecting to IMSI catchers.
IMSI catchers, stingrays or GSM interceptors as they're also called, force a phone to connect to them by emitting a stronger signal than the legitimate towers around them.
This technology is nothing new in theory, and governments already use what are called IMSI catchers to pull off a similar feat, which can even capture data transfers.