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Physical security, explained by the people who work in it.

Standards, technology and market coverage of physical security for installers, integrators, alarm receiving centres and guarding companies.

    Featured

    EU AI Act and CCTV: what applies in the UK, and the 2027 dates

    The EU AI Act reaches UK CCTV work only where the installer is established in the EU or the system’s output is used there. At home, UK GDPR, the ICO and the Surveillance Camera Code apply. The EU delay is law: Regulation (EU) 2026/1744 has been in force since 27 July 2026 and moves high-risk biometric obligations to 2 December 2027, while the bans apply already.

    Standards ·

    Standards

    Laws, standards and rulings: what they require and what changes in practice.

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    Technology

    Intrusion, video, access control and alarm signalling.

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    NVR, DVR or cloud CCTV recording: how to choose

    DVR, NVR, cloud and hybrid CCTV recording compared: storage and bandwidth worked out with real numbers, retention, UK GDPR processors, security and line failure.

    Technology ·

    Trade

    Designing, installing, maintaining and running systems.

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    Market

    Data, companies, events and jobs in the sector.

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    Data

    Home burglaries per 100,000 people, from official statistics. The Data section adds robbery, firms, licences and pay for other countries.

    All the data: 22 pages

    Tools

    CCTV storage calculator

    How many terabytes you need to record your cameras: enter the number of cameras, bitrate, hours and retention days. Free, no sign-up.

    CCTV sign generator

    Create a CCTV sign for the UK, Italy or Spain with the controller details and the information regulators ask for, then print it or save it as a PDF. Free.

    Upcoming trade shows

    All trade shows
    1. 12–14January 2027Intersec GlobalDubai, United Arab Emirates
    2. 5–9April 2027ISC WestLas Vegas, United States
    3. 21–23April 2027SecutechTaipei, Taiwan
    4. 27–29April 2027The Security Event EuropeBirmingham, United Kingdom

    Glossary

    Trade terms, explained in two lines.

    CCTV signage
    The notice displayed before the recorded area. It tells people that cameras are in use, who operates them and why, and points to fuller information.
    Controller
    Whoever decides why and how personal data is used, for example the business that has cameras installed. The controller answers for those decisions even when someone else installs or runs the system.
    False alarm
    An alarm signal that does not correspond to an intrusion or a real danger. The usual causes are user error, badly positioned devices and poor maintenance.
    Video analytics
    Software that examines camera images to recognise events, for example a person crossing a line or staying in an area. It is used to alert the operator only to what deserves attention.

    Open the glossary

    How we work

    Sentinary is written for people who install, design and run security systems. We read the sources for you and say what they change on the job.

    Our method, in fullAbout us

    1. From the source, not the press release

      Every article starts from laws, standards and official figures, and links to them.

    2. The answer in the first lines

      Every piece opens with a summary: what changes, for whom, from when.

    3. Independent of manufacturers

      No advertising dressed up as articles. Sponsorship, if any, is labelled.

    The sources we start from

    The laws, standards and regulators we write from, with links to the official document.

    All sources and standards