Does LockDown Browser Detect Second Monitors? (And What to Do)
TL;DR
Second monitors are detected on launch and the exam refuses to start. Disconnecting after start triggers a flag. The workaround isn't a second screen — it's a system overlay on your primary display that's invisible to capture.
Second-monitor setups used to be the most common bypass attempt. LockDown Browser now detects multi-display configurations on launch using the same OS APIs that desktop environments use for window management.
What happens when LockDown Browser sees a second monitor
The exam quits with a message instructing you to disconnect the second display. Some institutions log the attempt. Reconnecting the second display after the exam has started causes the exam to terminate.
What works instead
An AI overlay on your primary display that's invisible to LockDown Browser's screen capture. You get the same effect as a second monitor — reference material right next to the exam — without the OS reporting an extra display to the proctoring software.
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Sign up nowFrequently asked questions
What about a TV connected via HDMI?
Detected the same way as any other monitor. The OS sees it as a display; LockDown Browser sees what the OS sees.
Can I get around the second-monitor check?
Not reliably. Use a system overlay on your primary display instead. Lockdownify gives you the same workflow benefit as a second monitor without any extra hardware.
Will Lockdownify get me caught?
No. Lockdownify is filtered out of every screen-capture pipeline at the operating-system level — before a single pixel is ever encoded. LockDown Browser, Honorlock, Proctorio, Zoom, Teams, and Meet all read the same OS frame buffer, and Lockdownify is excluded from it. We re-test against every major proctoring tool weekly. If you ever do get flagged, we refund your subscription and reimburse the exam fee.
What platforms does Lockdownify support?
macOS 13 Ventura and later, and Windows 10 and 11. Both desktop apps ship today.
How much does it cost?
$40/month or $28/month if you pay annually (save 30%). One plan unlocks every model — Claude Opus 4.7, GPT-5, and Gemini 3.1 Pro — unlimited questions, unlimited screenshots, and the 100% bypass guarantee. Cancel anytime.
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