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How long do security cameras store data?

Security cameras usually store data from 7 to 90 days depending on the device and storage method. Users need to choose the right solution to avoid losing important footage.

Báo Khoa học và Đời sốngBáo Khoa học và Đời sống30/09/2025

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Typically, a security system (DVR/NVR) can store footage for 7 to 30 days.
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Some high capacity devices allow data to be retained for months at a time.
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With wired cameras, data is saved directly on the hard drive, providing stable and long-lasting images.
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Wi-Fi cameras usually use SD memory cards, with short recording times ranging from a few days to more than a month.
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Cloud storage solution allows data retention for 7, 14, 30, 60 or 90 days depending on the package.
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Cloud cameras have the advantage of accessing data at any time and reducing the risk of information loss.
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Users can extend the storage time by using a larger memory card or choosing a premium cloud plan.
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If you need to retain footage for legal or business purposes, it's a good idea to proactively upgrade your system to ensure data security.
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Source: https://khoahocdoisong.vn/camera-an-ninh-luu-tru-du-lieu-trong-bao-lau-post2149056757.html


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