★★★★★
Sieora's system has given us real peace of mind. Their team understood our safety needs and delivered a solution we can genuinely rely on.
Head of Safety OperationsNippon Paint India
Start Here
Two Very Different Questions
The single thing most teams miss: whether a camera broke and whether someone knocked it out are not the same question — and a status dashboard only answers the first one.
Uptime / Camera Health
"Has the camera broken?"
A technical fault — dropped offline, storage full, recording stopped. It raises an error, and monitoring picks it up.
This page — Tamper Detection
"Has someone disabled it on purpose?"
A security event. A covered lens is in flawless technical health — feed live, recorder running — and utterly useless. It raises nothing on its own. Closing that silent gap is the whole job.
Both matter, and a serious site wants both. But sabotage hides precisely because it doesn't look like a fault — which is why it needs its own detection rather than a health check.
What It Flags
Four Ways a Camera Quietly Goes Blind
Each is read from the camera's own existing stream — nothing extra bolted on at the camera.
Covered or blocked
A bag, a spray, a palm, an object shoved against the glass — caught by the abrupt, lasting collapse of scene detail when a working camera suddenly sees nothing.
Moved or redirected
A field of view that's drifted well off what it should cover — twisted toward a wall, tilted off an entrance, pointed somewhere it was never meant to look.
Defocused
A lasting drop in sharpness — twisted out of focus on purpose or by accident, it keeps recording, but only a smear no one can use.
Signal loss
A feed that's dropped or been cut outright — a deliberately severed connection told apart from an everyday network hiccup.
On the limits, no spin: what's caught reliably depends on the camera's own picture quality and how obvious the change is — a faint partial cover is harder than a fully bagged lens, and a slow re-aim harder than a sharp one. We don't quote a single accuracy number; we prove reliability on your own cameras during the assessment.
Why It Matters
A Disabled Camera Is Rarely the Whole Story
Usually the prelude
People rarely knock out a camera on a whim — it's often the setup for a theft, a break-in, or quiet damage. Spot it live and you can act before the rest unfolds.
Nobody watches every feed
On a site with hundreds of cameras, one facing a wall can slip by for days — most of all at unstaffed sites where footage is only pulled after something's gone wrong.
Firmware cover is uneven
Many cameras have their own tamper alarm, but it swings by brand and generation — dependable on some, flimsy on others — leaving a mixed fleet with patchy protection and no shared view.
The Whole Idea
One Standard of Tamper Cover Across a Mixed Fleet
Firmware tamper alarms differ maker by maker. Sieora connects to any IP or CCTV camera over open standards, so the tamper cover you get is identical on every camera regardless of who built it — no rip-and-replace, no single-vendor lock-in.
How It Works
Four Phases, On the Cameras You Have
No new hardware at the camera. Sensitivity and alert routing are tuned per site.
01
Learn the normal view
Each camera's everyday picture becomes its reference — what it ought to be seeing under ordinary conditions.
02
Watch & separate
The model measures the live feed against that reference and, crucially, weighs how the picture changed — so a drifting shadow or headlight sweep isn't mistaken for a covered lens.
03
Confirm it's real
An alert usually waits a minimum duration, so a quick lens wipe or someone crossing the shot for a second doesn't fire the way sustained interference does.
04
Alert & log centrally
Confirmed events reach your team in real time with a timestamped still, and are logged in one console across every site and brand.
Phases two and three are where it earns its keep. Anything can notice a picture changed; the trick is separating a covered lens from a cloud rolling over a car park, and a genuine block from someone brushing past for a moment. Those filters are what keep the alerts worth reading — and why a tamper feature that pings on every change of light gets muted within a week.
Where It Fits
Where It Earns Its Place
Anywhere a camera going quietly blind would cost you — and no one would clock it for a while.
Retail stockrooms
Back-of-house and staff-only areas, where a knocked-out camera can front-run internal shrinkage.
ATM lobbies & bank sites
Places in banking and finance where a compromised camera is a live security matter to act on, not an IT ticket.
Warehouses & logistics
Sprawling camera counts where one dead camera among hundreds can hide for a long time.
Unstaffed & remote sites
Locations with no one on hand, where footage is only pulled after the event and unbroken coverage is simply assumed.
Multi-site security teams
Operations spanning several locations — and usually several camera brands — where one shared view matters most.
High-value & restricted zones
Cash rooms, server rooms and secure stores, where a camera being knocked out is itself the thing to react to.
Why Sieora
A Vision-AI Team, Not a Camera Vendor
Runs the same on every brand
Detection behaves identically whoever made the camera — a mixed fleet gets even cover instead of results that lurch from unit to unit.
One console across sites
A single view of tamper events across the whole estate, not a separate check at each location.
Part of a wider vision stack
Sits alongside Sieora's video analytics, Cloud VMS and ANPR — same feeds, same platform.
Honest about what you own
Where a camera's built-in tamper alarm works well, it's worth keeping. Our value is even cover across brands and one shared view — not a claim that your current cameras have no protection.
Chennai-based engineering and support, with detection proven on your own cameras before it goes live.
FAQ
What Teams Ask First
How is tamper detection different from a camera being offline?
An offline camera raises a fault, and uptime tools catch it. A tampered camera raises nothing — as far as the system can tell it's working, with the feed live and the recorder writing. It's simply been made useless. Tamper detection is the security answer to that, not the uptime one.
Which kinds of tampering does it flag?
Four today: a covered or blocked view, a camera moved or turned away from its area, a picture knocked out of focus, and a feed that's dropped or been cut. Each is a separate way a camera stops being useful while often still looking "online" at a glance.
Our cameras already have a tamper alarm — what does Sieora add?
Many cameras carry a firmware tamper alarm, and where it works well it's worth keeping. The gap is uneven cover across a mixed fleet — firmware behaviour differs maker to maker. Sieora behaves the same on every brand, from one console, so protection no longer depends on which camera sits where.
Will it keep quiet when the light changes or someone briefly steps in front?
It weighs how the picture changed, not merely that it changed, and usually waits a minimum duration before alerting. A drifting shadow, a shift in light, or a quick pass in front of the lens reads very differently from sustained interference.
Does it run on cameras of any brand?
Yes. It connects over ONVIF, RTSP and standard NVR APIs, so it works across whatever brands are already in your estate rather than needing one specific maker.