Account sharing in online courses: device limits that work
If a student lends their login to three friends, the course loses value. What Netflix and Disney+ do, what you can do, and where a device limit is not enough.
Account sharing is the easiest way to lose sales without noticing: one student pays, three people watch. No copying technique is needed. This guide explains what can be done proportionately and where limits stop being enough.
An honest premise: we found no independent data on how much sharing weighs on course revenue. What we describe about streaming services' rules comes from their help pages and may vary by country.
What is account sharing in an online course?
It is when a buyer's credentials are used by other people, at home or outside. It is not about copying the video: it is about who watches. The course stays intact, but the number of people seeing it exceeds the number who paid for the licence.
Telling the cases apart helps pick the response. There is occasional lending between family members, which many consider normal, stable sharing between friends or colleagues, and organised resale of access. The first is a nuisance, the second a pricing problem, the third a violation that needs firmer action. One limit does not solve them all and, if too strict, penalises exactly the people who bought correctly.
What do Netflix and Disney+ do against sharing?
Netflix's and Disney+'s help pages both describe the idea of a household and the option of adding outside people for an extra fee. For a course it is useful as inspiration, not a model to copy: the context is different.
Netflix explains in its help pages how the Netflix household and the extra member option work; Disney+ describes a similar mechanism with an extra member. Conditions, prices and availability vary by country and change over time: in the pages we read the prices referred to the United States, so we do not quote them as a reference for Europe. The useful point is the approach: instead of banning everything, the service defines a legitimate circle and offers an official way to widen it.
What tools do you have to limit access?
There are three tools: a cap on registered devices, a cap on simultaneous sessions and a block on rapid changes of place or network. Not every platform offers them, and those that do name them differently: your platform's documentation is the only reliable source.
| Device cap | Simultaneous sessions | Clear terms of use | Per-student watermark | |
|---|---|---|---|---|
| Makes stable lending inconvenient | Yes | Partly | No | No |
| Prevents watching at the same time | No | Yes | No | No |
| Tells the student what is allowed | Partly | Partly | Yes | No |
| Makes a video outside the circle traceable | No | No | No | Yes |
| Stops someone who deliberately works around it | No | No | No | No |
The editors' judgement, not a measurement: no single control stops someone determined to get around it.
The last row is deliberately all “No”. None of these tools stops a determined person. They reduce casual abuse and create the grounds to act if needed.
How do you choose the right limit?
You start from how your students use the course: phone, laptop, a second device at home. A cap of two or three registered devices is a reasonable base for personal use, but the right number depends on your audience and should be checked against your support tickets.
The risk to avoid is the honest student left locked out: they changed phone, are travelling, bought a new computer. If the rule is too tight, support fills with requests and reviews get worse. So provide a simple procedure to replace a device and a message that explains what happened. If you sell on a general platform, compare how each handles these limits in the guide to platforms to sell online courses.
How do you explain it to students without irritating them?
You write it before purchase, briefly, and say why: the course is licensed to one person. Add how to change device and what to do if access is lost. Transparency reduces complaints far more than a silent block.
One sentence on the sales page is enough: “Access is personal and covers up to N devices; you can replace one from your account.” In the terms of use, put in writing what is forbidden (sharing credentials, redistributing videos) and what may happen (access suspended). If you doubt the validity of the clauses in your case, have the text checked by a professional: we do not give legal advice. For the wider rights picture read creator content rights and licensing.
What do traceability and watermarks add?
They do not prevent lending, but they make it recognisable. With a different mark for each student, a video that circulates outside the course can be traced to the account it came from, and that changes the conversation with whoever shared: it is not a suspicion, it is a checkable fact.
That is the real contribution of the watermark: deterrence and proof, not a wall. How it works and its limits are in the guide to per-student watermarks and the differences with DRM and signed URLs in DRM, watermark or signed URLs. In a monthly membership sharing weighs less, because cadence and community push people to use their own account; in one-time-payment courses it weighs more.
What do you do when you find a shared account?
The first step is a polite message, not suspension: often the student did not know it was forbidden. If the behaviour continues, you apply the terms already written. If you find commercial use, meaning someone reselling access, firmer action is needed.
Write a three-step procedure in advance: warning, second warning with a deadline, suspension. Keep a record of what you saw (logins from many places on the same day, too many devices) without making assumptions about people. For reports of resale in groups or channels, the guide to course piracy explains how to document and report.
Key terms. Account sharing is the use of a student's credentials by other people. A device limit is the maximum number of devices registered per account. Simultaneous sessions are active viewings at the same moment with the same account.
How we checked this. We read the help pages of Netflix and Disney+ on households and extra members and found rules that vary by country, with prices referring to the United States. We found no independent data on the incidence of sharing on course revenue, and we say so. Contact: hi@heytea.app. Editorial note: we fact-check every figure against the sources listed below and correct mistakes openly.
Frequently asked questions
Is account sharing piracy?
In practice it is a use your terms of sale did not intend, not necessarily piracy. What counts is what you wrote in the terms: if the licence is personal and you say so clearly, lending credentials is a breach of contract. Real piracy is copying and redistributing the video, which needs other measures.
Does a device limit stop account sharing?
Not on its own. A cap on devices or simultaneous sessions makes lending inconvenient, but someone sharing can free a device and use another. It is a brake on casual use, not a barrier against people who really want to get around it, and works best with clear terms and a traceability signal.
Is it better to limit devices or simultaneous sessions?
They are two different controls. A cap on registered devices slows stable lending but annoys people who change phone; a cap on simultaneous sessions stops two people watching together but tolerates many devices. Many platforms offer both: check your platform's documentation for what is configurable.
How do you explain the limit to students without irritating them?
Write it before purchase, in a few words, and say why: the course is licensed to one person. Provide a simple way to change device, for example removing the old one from the personal area. Problems arise when a block arrives with no explanation.
Does a per-student watermark relate to account sharing?
Yes, but differently. It does not stop lending an account: it makes a video that leaves the circle of students traceable to where it came from. So treat it as a deterrent and a proof, not a block. We explain it in the guide to per-student watermarks.
Sources
- Netflix, Help Center: Netflix household and extra member. Help pages, conditions vary by country. Read on 16 October 2026. help.netflix.com
- Disney+, Help Center: household and extra member. Read on 16 October 2026. help.disneyplus.com
- The Walt Disney Company, explainer on paid sharing. Read on 16 October 2026. thewaltdisneycompany.com