# How to Stop Students from Sharing Your Paid Videos

By Lariyo Editorial Team · 2026-11-07 · Security and privacy

> Paid lectures leak through shared passwords, screen recording and downloaded files. Here is how each leak happens and what actually stops it.

Every institute that sells recorded lectures meets the same problem: one student pays, and the videos end up in a group of fifty. You cannot make sharing impossible, but you can make it hard, traceable and not worth the trouble. Here is how videos leak and what stops each leak.

## Leak 1: the video file itself

If your lectures are a link to Google Drive, a public YouTube video or an MP4 anyone can download, the file is the leak. Once it is copied, it is gone.

What stops it: **encrypted streaming**. The video is cut into small encrypted pieces and only your app holds the key to play them. Copying the pieces gives the copier nothing they can open.

## Leak 2: one account, many people

A single paid account shared among friends is the most common leak, and the easiest to stop.

What stops it: **device limits**. Each student can sign in on, say, one phone and one computer. A third device is refused, and you can see and remove devices from the admin panel. When students know their account will lock, they stop sharing it.

## Leak 3: screen recording

Any screen can be filmed — even by another phone held up to it. You cannot fully prevent that, but you can make recordings less useful and easier to trace.

What helps:

- **Screen-recording detection.** On iPhone the app can tell when the screen is being recorded and stop playback or report it to you.
- **A moving watermark** with the student's name or phone number drifting across the video. A leaked recording then names the person who leaked it, which is a strong reason not to.
- **Blocking emulators, extra displays and screen-capture apps** on computers, where your app allows it.

## Leak 4: downloaded videos

Students on slow or expensive mobile data want to download lectures. That is fair, and refusing it pushes them to pirated copies.

What works: **encrypted offline downloads** that play only inside your app, on that device, while the student's access is active. If access ends, the downloads stop playing.

## Leak 5: rooted phones and modified apps

A small number of users run modified apps or rooted phones to get around protections.

What helps: **integrity checks**, such as Google Play Integrity on Android and signature checks on desktop, so the app refuses to play content on a tampered device.

## Make sharing a bad deal, not just a hard one

Technology is half the answer. The other half is making your course easy to buy:

- Price it fairly and offer instalments, so paying is easier than hunting for a copy.
- Keep adding fresh content — tests, live classes and updated notes — that a leaked copy cannot include.
- Tell students clearly that videos carry their name and that accounts are limited to their devices.

## A quick checklist

1. No public links or downloadable MP4s for paid lectures.
2. Encrypted streaming inside your own app.
3. A device limit per student, with a way to reset devices.
4. A moving watermark with the student's details.
5. Encrypted downloads only.
6. Integrity checks on Android and desktop.

Lariyo includes each of these. See [secure video](https://lariyo.com/features/secure-video) and [device security](https://lariyo.com/features/device-security) for how they work in practice.

## Frequently asked questions

### Can screen recording be blocked completely?

No platform can stop someone filming a screen with another phone. Detection on iPhone, desktop protections and a moving watermark with the student's name make recordings rare and traceable.

### Will device limits annoy honest students?

Not if you set sensible limits, such as one phone and one computer, and reset devices quickly when a student changes phones.

Tags: video-security, piracy, device-limits
Source: https://lariyo.com/blog/stop-students-sharing-paid-videos