or interception of electronically transmitted information (such as Internet traffic or phone calls).It can also include simple no- or relatively low-technology methods such as human intelligence agents and postal interception.About half of these letters requested information on U. Speech-to-text software creates machine-readable text from intercepted audio, which is then processed by automated call-analysis programs, such as those developed by agencies such as the Information Awareness Office, or companies such as Verint, and Narus, which search for certain words or phrases, to decide whether to dedicate a human agent to the call.
Once the data has been collected, the GCHQ can hold on to it for up to two years.
The deadline can be extended with the permission of a "senior UK official".
Surveillance cameras are video cameras used for the purpose of observing an area.
They are often connected to a recording device or IP network, and may be watched by a security guard or law enforcement officer.
Through accessing this information, the government is able to obtain search history, emails, stored information, live chats, file transfers, and more. The official and unofficial tapping of telephone lines is widespread. and Verizon—have contracts with the FBI, requiring them to keep their phone call records easily searchable and accessible for Federal agencies, in return for $1.8 million per year.
This program generated huge controversies in regards to surveillance and privacy, especially from U. In the United States for instance, the Communications Assistance For Law Enforcement Act (CALEA) requires that all telephone and Vo IP communications be available for real-time wiretapping by Federal law enforcement and intelligence agencies. Between 20, the FBI sent out more than 140,000 "National Security Letters" ordering phone companies to hand over information about their customers' calling and Internet histories. Human agents are not required to monitor most calls.It is also used by criminal organisations to plan and commit crimes, such as robbery and kidnapping, by businesses to gather intelligence, and by private investigators.Surveillance can be understood as a violation of privacy, and as such is often opposed by various civil liberties groups and activists.The area of surveillance is increasingly a topic of academic study, In the United States for example, under the Communications Assistance For Law Enforcement Act, all phone calls and broadband Internet traffic (emails, web traffic, instant messaging, etc.) are required to be available for unimpeded real-time monitoring by federal law enforcement agencies.There is far too much data on the Internet for human investigators to manually search through all of it.Another form of computer surveillance, known as van Eck phreaking, involves reading electromagnetic emanations from computing devices in order to extract data from them at distances of hundreds of meters.