Last verified August 2026 · India
Most people searching for “video DRM” do not need DRM. They need a student to stop sharing a login, and a leaked recording to be traceable to whoever leaked it. This page explains what DRM actually is, the one case where you genuinely need it, and what protects your material the rest of the time.
A secure online teaching platform protects course content with four things: signed, expiring media links so a copied URL dies, a per-student device cap so one login cannot be shared across a batch, per-viewer watermarking so a leak identifies its source, and copy, print and download lockdown. True DRM — Widevine, FairPlay, PlayReady — is a separate, narrower technology that encrypts the file itself, and most Indian institutes do not need it.
DRM encrypts the video file so that a player must fetch a decryption licence before it will play. Three systems divide the market — Widevine (Google/Chrome/Android), FairPlay (Apple/Safari/iOS) and PlayReady(Microsoft/Edge) — and a platform needs all three to cover every device your students own. It is a specific piece of engineering, not a synonym for “secure”.
Here is the part vendors skip. DRM controls whether a file can be decoded. It does nothing about a phone camera pointed at a laptop, and on the web it does not reliably stop a screen recorder either. Blocking screen capture is an operating-system privilege that only an installed mobile app can request — Android exposes it as FLAG_SECURE, iOS has an equivalent. That is why platforms advertising screenshot blocking sell you a native app alongside it.
When you genuinely do need DRM
Two cases. You license third-party content whose owner contractually requires it. Or a single asset is valuable enough that organised re-selling is a real business — a complete test series for a national entrance exam, for instance. If either applies, ask every vendor which of the three systems they hold and whether capture blocking is web or app-only. If neither applies, DRM is a line item that will not change your outcome.
Five controls, each of which a buyer’s IT team can verify in ten minutes. Turn them on per academy in Dashboard → Settings → Security.
Cap how many devices one student account can sign in from.
Set a per-student device cap for the whole academy. A known device is always allowed; a new one past the cap is refused with a message telling the student to sign out elsewhere or ask their teacher. Teachers see each student's device list and can reset it. Set the cap to 1 and the account works on one device at a time — the parallel-login case.
Dashboard → Settings → Security
Require a one-time code by email at login.
Codes are stored only as a bcrypt hash, are single-use, expire, allow five attempts, and invalidate any previous code. An academy admin can enforce it for everyone, and any individual member can opt themselves in. If email delivery isn't configured the gate stays off rather than locking people out.
Dashboard → Settings → Security
Every protected page carries the viewer's own identity.
Protected video and exam papers are overlaid with the viewer's name, email, ID and the time, taken from the signed server session rather than the browser's local roster — so a viewer can't edit their own mark. If a recording leaks, it is traceable to one account, and the student knows that while they watch.
Dashboard → Settings → Security → Show dynamic watermark
Turn off right-click, selection, copy, print and drag-to-save.
Five independent switches on protected content: disable right-click, text selection, copy, print, and dragging media out to save it. Protected PDFs render to a canvas rather than the browser's PDF viewer, which otherwise hands the reader its own download and print buttons.
Dashboard → Settings → Security → Content protection
A shared video URL stops working.
Protected media plays through per-workspace signed URLs that expire, so copying a link out of the network tab and pasting it into a WhatsApp group hands over something that has already stopped working.
On by default for protected content
Competitors list these. We can’t, truthfully — and saying so is what should make the five above credible.
Blocking screenshots and screen recording
No browser lets a website block a screenshot or a screen recorder. Platforms that offer this do it inside an installed mobile app, where the operating system provides it. Prolaud is web-based, so instead of preventing the capture we make it attributable: every protected view carries the viewer's identity.
Automated piracy monitoring
We don't crawl the web looking for leaked copies. What we give you is the forensic watermark that identifies which account a leaked copy came from, and a takedown process.
We get this question most often from institutes in Chennai, Bengaluru, Hyderabad and Kolkata, so it is worth answering plainly: no, not for the security itself. Every control on this page is served from the same infrastructure and behaves identically wherever your institute sits. Anyone selling you a city-specific security product is selling you a landing page.
Where your location genuinely matters is money and compliance. GST invoices need the correct CGST/SGST split on an intra-state sale and IGST across state lines; students expect to pay by UPI; and payouts have to settle in INR to an Indian bank. Those are real regional differences, and they are handled in GST invoicing rather than here.
Take this to a demo. Adjectives are free; these have answers.
Prolaud’s answers to all seven are on the content security reference, including the two where the answer is no.
Content security reference
Every control, what it does, and where to switch it on.
Evaluation checklist
The long-form version to take into a vendor demo.
Online teaching platforms in India
The wider comparison — commission, UPI, GST, payouts.
Learnyst alternative
The platform that leads on DRM, compared honestly.
Free to start, no card. Device caps, per-viewer watermarking, expiring media links and copy lockdown — on your own domain, at 0% commission.