Cellphone surveillance (also known as cellphone spying) may involve tracking, bugging, monitoring, eavesdropping, and recording conversations and text messages on mobile phones. [1] It also encompasses the monitoring of people's movements, which can be tracked using mobile phone signals when phones are turned on. [2]
StingRay devices are a technology that mimics a cellphone tower, causing nearby cellphones to connect and pass data through them instead of legitimate towers. [3] This process is invisible to the end-user and allows the device operator full access to any communicated data. [3] They are also capable of capturing information from phones of bystanders. [4] This technology is a form of man-in-the-middle attack. [5]
StingRays are used by law enforcement agencies to track people's movements, and intercept and record conversations, names, phone numbers and text messages from mobile phones. [1] Their use entails the monitoring and collection of data from all mobile phones within a target area. [1] Law enforcement agencies in Northern California that have purchased StingRay devices include the Oakland Police Department, San Francisco Police Department, Sacramento County Sheriff's Department, San Jose Police Department and Fremont Police Department. [1] The Fremont Police Department's use of a StingRay device is in a partnership with the Oakland Police Department and Alameda County District Attorney's Office. [1]
End-to-end encryption such as Signal protects traffic against StingRay devices via cryptographic strategies. [6]
Dirtbox (cell phone) is a technology similar to Stingrays that are usually mounted on aerial vehicles that can mimic cell sites and also jam signals. The device uses an IMSI-catcher and is claimed to be able to bypass cryptographic encryption by getting IMSI numbers and ESNs (electronic serial numbers).
A tower dump is the sharing of identifying information by a cell tower operator, which can be used to identify where a given individual was at a certain time. [7] [8] As mobile phone users move, their devices will connect to nearby cell towers in order to maintain a strong signal even while the phone is not actively in use. [9] [8] These towers record identifying information about cellphones connected to them which then can be used to track individuals. [7] [8]
In most of the United States, police can get many kinds of cellphone data without obtaining a warrant. Law-enforcement records show police can use initial data from a tower dump to ask for another court order for more information, including addresses, billing records and logs of calls, texts and locations. [8]
Cellphone bugs can be created by disabling the ringing feature on a mobile phone, allowing a caller to call a phone to access its microphone and listening. One example of this was the group FaceTime bug. This bug enables people to eavesdrop on conversations without calls being answered by the recipient.
In the United States, the FBI has used "roving bugs", which entails the activation of microphones on mobile phones to the monitoring of conversations. [10]
Cellphone spying software [11] is a type of cellphone bugging, tracking, and monitoring software that is surreptitiously installed on mobile phones. This software can enable conversations to be heard and recorded from phones upon which it is installed. [12] Cellphone spying software can be downloaded onto cellphones. [13] Cellphone spying software enables the monitoring or stalking of a target cellphone from a remote location with some of the following techniques: [14]
Cellphone spying software can enable microphones on mobile phones when phones are not being used, and can be installed by mobile providers. [10]
Intentionally hiding a cell phone in a location is a bugging technique. Some hidden cellphone bugs rely on Wi-Fi hotspots, rather than cellular data, where the tracker rootkit software periodically "wakes up" and signs into a public Wi-Fi hotspot to upload tracker data onto a public internet server.
Governments may sometimes legally monitor mobile phone communications - a procedure known as lawful interception. [15]
In the United States, the government pays phone companies directly to record and collect cellular communications from specified individuals. [15] U.S. law enforcement agencies can also legally track the movements of people from their mobile phone signals upon obtaining a court order to do so. [2]
These invasive legal surveillance can cause a change in public behaviors directing our ways of communication away from technology based devices.
In 2018, United States cellphone carriers that sell customers' real-time location data - AT&T, Verizon, T-Mobile, and Sprint- publicly stated they would cease those data sales because the FCC found the companies had been negligent in protecting the personal privacy of their customers' data. Location aggregators, bounty hunters, and others including law enforcement agencies that did not obtain search warrants used that information. FCC Chairman Ajit Pai concluded that carriers had apparently violated federal law. However, in 2019, the carriers were continuing to sell real-time location data. In late February 2020, the FCC was seeking fines on the carriers in the case. [16]
In 2005, the prime minister of Greece was advised that his, over 100 dignitaries', and the mayor of Athens' mobile phones were bugged. [12] Kostas Tsalikidis, a Vodafone-Panafon employee, was implicated in the matter as using his position as head of the company's network planning to assist in the bugging. [12] Tsalikidis was found hanged in his apartment the day before the leaders were notified about the bugging, which was reported as "an apparent suicide." [17] [18] [19] [20]
Security holes within Signalling System No. 7 (SS7), called Common Channel Signalling System 7 (CCSS7) in the US and Common Channel Interoffice Signaling 7 (CCIS7) in the UK, were demonstrated at Chaos Communication Congress, Hamburg in 2014. [21] [22]
During the coronavirus pandemic Israel authorized its internal security service, Shin Bet, to use its access to historic cellphone metadata [23] to engage in location tracking of COVID-19 carriers. [24]
Some indications of possible cellphone surveillance occurring may include a mobile phone waking up unexpectedly, using a lot of battery power when on idle or when not in use, hearing clicking or beeping sounds when conversations are occurring and the circuit board of the phone being warm despite the phone not being used. [30] [38] [47] However, sophisticated surveillance methods can be completely invisible to the user and may be able to evade detection techniques currently employed by security researchers and ecosystem providers. [48]
Preventive measures against cellphone surveillance include not losing or allowing strangers to use a mobile phone and the utilization of an access password. [13] [14] Another technique would be turning off the phone and then also removing the battery when not in use. [13] [14] Jamming devices or a Faraday cage may also work, the latter obviating removal of the battery [49]
Another solution is a cellphone with a physical (electric) switch or isolated electronic switch that disconnects the microphone and the camera without bypass, meaning the switch can be operated by the user only - no software can connect it back.
In radio communication, a transceiver is an electronic device which is a combination of a radio transmitter and a receiver, hence the name. It can both transmit and receive radio waves using an antenna, for communication purposes. These two related functions are often combined in a single device to reduce manufacturing costs. The term is also used for other devices which can both transmit and receive through a communications channel, such as optical transceivers which transmit and receive light in optical fiber systems, and bus transceivers which transmit and receive digital data in computer data buses.
Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing, or directing. This can include observation from a distance by means of electronic equipment, such as closed-circuit television (CCTV), or interception of electronically transmitted information like Internet traffic. Increasingly, governments may also obtain consumer data through the purchase of online information, effectively expanding surveillance capabilities through commercially available digital records. It can also include simple technical methods, such as human intelligence gathering and postal interception.
A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance, espionage and police investigations.
Wiretapping, also known as wire tapping or telephone tapping, is the monitoring of telephone and Internet-based conversations by a third party, often by covert means. The wire tap received its name because, historically, the monitoring connection was an actual electrical tap on an analog telephone or telegraph line. Legal wiretapping by a government agency is also called lawful interception. Passive wiretapping monitors or records the traffic, while active wiretapping alters or otherwise affects it.
A cell site, cell phone tower, cell base tower, or cellular base station is a cellular-enabled mobile device site where antennas and electronic communications equipment are placed to create a cell, or adjacent cells, in a cellular network. The raised structure typically supports antenna and one or more sets of transmitter/receivers transceivers, digital signal processors, control electronics, a GPS receiver for timing, primary and backup electrical power sources, and sheltering.
Bluesnarfing is the unauthorized access of information from a wireless device through a Bluetooth connection, often between phones, desktops, laptops, and PDAs. This allows access to calendars, contact lists, emails and text messages, and on some phones, users can copy pictures and private videos. Both Bluesnarfing and Bluejacking exploit others' Bluetooth connections without their knowledge. While Bluejacking is essentially harmless as it only transmits data to the target device, Bluesnarfing is the theft of information from the target device.
Secure communication is when two entities are communicating and do not want a third party to listen in. For this to be the case, the entities need to communicate in a way that is unsusceptible to eavesdropping or interception. Secure communication includes means by which people can share information with varying degrees of certainty that third parties cannot intercept what is said. Other than spoken face-to-face communication with no possible eavesdropper, it is probable that no communication is guaranteed to be secure in this sense, although practical obstacles such as legislation, resources, technical issues, and the sheer volume of communication serve to limit surveillance.
An intercom, also called an intercommunication device, intercommunicator, or interphone, is a stand-alone voice communications system for use within a building, small collection of buildings or portably within a small coverage area, which functions independently of the public telephone network. Intercoms are generally mounted permanently in buildings and vehicles, but can also be detachable and portable. Intercoms can incorporate connections to public address loudspeaker systems, walkie talkies, telephones, and other intercom systems. Some intercom systems incorporate control of devices such as signal lights and door latches.
Mobile phone tracking is a process for identifying the location of a mobile phone, whether stationary or moving. Localization may be affected by a number of technologies, such as the multilateration of radio signals between (several) cell towers of the network and the phone or by simply using GNSS. To locate a mobile phone using multilateration of mobile radio signals, the phone must emit at least the idle signal to contact nearby antenna towers and does not require an active call. The Global System for Mobile Communications (GSM) is based on the phone's signal strength to nearby antenna masts.
An international mobile subscriber identity-catcher, or IMSI-catcher, is a telephone eavesdropping device used for intercepting mobile phone traffic and tracking location data of mobile phone users. Essentially a "fake" mobile tower acting between the target mobile phone and the service provider's real towers, it is considered a man-in-the-middle (MITM) attack. The 3G wireless standard offers some risk mitigation due to mutual authentication required from both the handset and the network. However, sophisticated attacks may be able to downgrade 3G and LTE to non-LTE network services which do not require mutual authentication.
A GPS tracking unit, geotracking unit, satellite tracking unit, or simply tracker is a navigation device normally on a vehicle, asset, person or animal that uses satellite navigation to determine its movement and determine its WGS84 UTM geographic position (geotracking) to determine its location. Satellite tracking devices may send special satellite signals that are processed by a receiver.
Countersurveillance refers to measures that are usually undertaken by the public to prevent surveillance, including covert surveillance. Countersurveillance may include electronic methods such as technical surveillance counter-measures, which is the process of detecting surveillance devices. It can also include covert listening devices, visual surveillance devices, and countersurveillance software to thwart unwanted cybercrime, such as accessing computing and mobile devices for various nefarious reasons. More often than not, countersurveillance will employ a set of actions (countermeasures) that, when followed, reduce the risk of surveillance. Countersurveillance is different from sousveillance, as the latter does not necessarily aim to prevent or reduce surveillance.
A mobile phone or cell phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone. The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and therefore mobile telephones are called cellphones in North America. In addition to telephony, digital mobile phones support a variety of other services, such as text messaging, multimedia messaging, email, Internet access, short-range wireless communications, satellite access, business applications, payments, multimedia playback and streaming, digital photography, and video games. Mobile phones offering only basic capabilities are known as feature phones ; mobile phones that offer greatly advanced computing capabilities are referred to as smartphones.
Cyber spying, cyber espionage, or cyber-collection is the act or practice of obtaining secrets and information without the permission and knowledge of the holder of the information using methods on the Internet, networks or individual computers through the use of proxy servers, cracking techniques and malicious software including Trojan horses and spyware. Cyber espionage can be used to target various actors- individuals, competitors, rivals, groups, governments, and others- in order to obtain personal, economic, political or military advantages. It may wholly be perpetrated online from computer desks of professionals on bases in far away countries or may involve infiltration at home by computer trained conventional spies and moles or in other cases may be the criminal handiwork of amateur malicious hackers and software programmers.
Matthew Rosenfeld, better known by the pseudonym Moxie Marlinspike, is an American entrepreneur, cryptographer, and computer security researcher. Marlinspike is the creator of Signal, co-founder of the Signal Technology Foundation, and served as the first CEO of Signal Messenger LLC. He is also a co-author of the Signal Protocol encryption used by Signal, WhatsApp, Google Messages, Facebook Messenger, and Skype.
Phone surveillance is the act of performing surveillance on phone conversations, location tracking, and data monitoring of a phone. Before the era of mobile phones, these used to refer to the tapping of phone lines via a method called wiretapping. Wiretapping has now been replaced by software that monitors the cell phones of users.
The StingRay is an IMSI-catcher, a cellular phone surveillance device, manufactured by Harris Corporation. Initially developed for the military and intelligence community, the StingRay and similar Harris devices are in widespread use by local and state law enforcement agencies across Canada, the United States, and in the United Kingdom. Stingray has also become a generic name to describe these kinds of devices.
During the 2010s, international media reports revealed new operational details about the Anglophone cryptographic agencies' global surveillance of both foreign and domestic nationals. The reports mostly relate to top secret documents leaked by ex-NSA contractor Edward Snowden. The documents consist of intelligence files relating to the U.S. and other Five Eyes countries. In June 2013, the first of Snowden's documents were published, with further selected documents released to various news outlets through the year.
A dirtbox is a cell site simulator, a phone device mimicking a cell phone tower, that creates a signal strong enough to cause nearby dormant mobile phones to switch to it. Mounted on aircraft, it has been used by the United States Marshals Service since at least 2007 to locate and collect information from cell phones believed to be connected with criminal activity. It can also be used to jam phones. The device's name comes from the company that developed it, Digital Receiver Technology, Inc. (DRT), owned by the Boeing Company. Boeing describes the device as a hybrid of "jamming, managed access and detection". A similar device with a smaller range, the controversial StingRay phone tracker, has been widely used by U.S. federal entities, including the Federal Bureau of Investigation (FBI).
A microphone blocker is an adapter designed to prevent eavesdropping.
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