PC privacy protection: common intrusions and how to stay safe
Most privacy intrusions aren't sophisticated attacks — they're the minute you left your PC unlocked, or someone "just borrowing" your laptop. Here are the most common everyday situations, what could be exposed, general habits that help anyone, and exactly where MoLock — a privacy lock for Windows 10/11 — fits in: it locks your PC while you're away, catches intruders on camera, and lets you control your PC from Telegram. No scare tactics — just simple steps that make a difference.
Privacy intrusion examples
They happen often — and you can prevent them
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Shoulder surfing
- Everyday example
- You're at the office or on a train typing a message or signing in, and the person next to you is watching your screen — or your fingers as you type your password.
- What could be exposed
- Private conversations, account details, or even your password if it's seen while you type it.
- How to protect yourself
- In busy places, sit with your back to a wall and lower the screen brightness if needed.
- Use a privacy screen filter if you often work in public.
- Shield your hand when typing a password, just like at an ATM.
With MoLock: MoLock has no password box at all: you just type it anywhere on the lock screen, and only a subtle "typing" pulse shows — it never reveals the length. Someone watching learns nothing, not even how long it is.
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Reading chats you left open
- Everyday example
- You left WhatsApp Web or Messenger open and went to make tea. Anyone passing by can read your messages, send one in your name, or scroll through your groups.
- What could be exposed
- Personal conversations, photos and files shared in chats, and messages that could be sent in your name.
- How to protect yourself
- Lock the screen every time you get up, even for a minute: Win + L.
- Check "Linked devices" in WhatsApp on your phone and log out of any you don't use.
- On a shared computer, sign out when you're done instead of just closing the tab.
With MoLock: MoLock locks automatically after an idle time you choose, with an optional countdown warning first. And if you remember you left a chat open while you're out, just send
/lockto your own Telegram bot. -
Browsing your photos
- Everyday example
- Someone uses your PC to "look something up", then opens your Pictures folder or the Photos app and scrolls through your personal and family photos.
- What could be exposed
- Personal and family photos, screenshots containing private details, and photographed documents like IDs or bills.
- How to protect yourself
- Give each person their own Windows account instead of one shared login.
- Move sensitive photos to an encrypted location or a cloud service protected with two-step verification.
- Delete old screenshots that contain personal information.
With MoLock: If someone tries to open your PC with a wrong password, MoLock records an "incident" — a photo burst and a short clip with sound — and sends it to your own Telegram bot as one album (when you've turned on the evidence features).
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Opening your email and social accounts
- Everyday example
- Your browser keeps Gmail and Facebook signed in. Anyone at your PC can read your email, change settings, or use "forgot password" on your other accounts through your inbox.
- What could be exposed
- Your email is the key to your other accounts, so access to it can affect everything else.
- How to protect yourself
- Turn on two-step verification (2FA) for email and social accounts.
- Review "where you're signed in" in each account and sign out of anything you don't recognize.
- Don't save passwords in a browser on a shared PC without protection.
With MoLock: MoLock covers every monitor with its lock screen, so no one reaches your browser while you're away. You can also make it lock on every Windows sign-in, or on a schedule.
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Copying your files to a USB drive
- Everyday example
- In the two minutes you're away, someone plugs in a flash drive and copies a work folder, photos or documents.
- What could be exposed
- A copy of your files leaves with no obvious trace on the PC.
- How to protect yourself
- Turn on Device Encryption or BitLocker so the drive itself is protected.
- Don't leave sensitive files on the desktop or in Downloads.
- Lock your PC before stepping away, even for seconds.
With MoLock: While locked, MoLock keeps people away from your desktop and files, and it can log every USB insertion in the activity log. You can even make your own flash drive a trusted key: pull it out and the PC locks, plug it in and it unlocks.
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Installing spyware or a keylogger
- Everyday example
- Someone has a few minutes on your unlocked PC and installs a program that records what you type or watches your screen in the background.
- What could be exposed
- Passwords and messages could be captured later without you noticing.
- How to protect yourself
- Keep Windows Security (or another trusted antivirus) on and up to date, and run a full scan if anything feels off.
- Use a standard (non-admin) Windows account day to day, so installs need approval.
- Review installed apps and startup apps from time to time.
With MoLock: To be clear: MoLock is not an antivirus and doesn't detect spyware. Its job is to keep the PC locked so no one gets those minutes in the first place, and to record any wrong-password attempt with photos and video. For malware protection, rely on Windows Security or a trusted antivirus.
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Password guessing
- Everyday example
- Someone who knows you tries your birthday, your child's name or 123456 until something works.
- What could be exposed
- A predictable password can fall in a few tries and open everything on the PC.
- How to protect yourself
- Use a long passphrase, or a password unrelated to you or your family.
- Don't reuse passwords — a password manager makes this easy.
With MoLock: After a number of wrong attempts you choose, MoLock adds a cooldown. Every wrong attempt is recorded with photos, video and location — optionally what was typed too — and sent to your Telegram. You can also pick an action after the last attempt: sign out or shut down.
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Being pressured to unlock
- Everyday example
- Someone pressures or threatens you into unlocking your PC in front of them, and refusing isn't an option.
- What could be exposed
- Your safety comes first. Data can be recovered — but it helps if someone you trust knows something is wrong.
- How to protect yourself
- Don't resist in a dangerous situation — your safety matters more than any file.
- Keep very sensitive things in accounts protected by 2FA, not only on the PC.
With MoLock: MoLock has a duress password: type it and the PC unlocks normally, so the other person thinks it worked — while MoLock silently sends an alert and a photo to your Telegram and logs it.
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Laptop theft
- Everyday example
- Your laptop is taken from a car or a café table.
- What could be exposed
- The device itself — and everything on it if the drive isn't encrypted.
- How to protect yourself
- Turn on BitLocker or Device Encryption — that's what protects files even if the drive is removed.
- Turn on Windows "Find my device".
- Keep a backup of your important files.
With MoLock: If someone tries to get in, MoLock sends you their photos, a video and the device's location as a map pin. From Telegram you can ask for
/locate,/where, or/geoloop 5to get the location every 5 minutes. If it's offline, evidence is queued and sent once it's back. -
Someone closing your security apps
- Everyday example
- Someone opens Task Manager and ends your security app, or quits it from the tray, so they can carry on undisturbed.
- What could be exposed
- Protection that's easy to switch off is only protection on paper.
- How to protect yourself
- Don't give admin rights to other people who use your PC.
- Password-protect your apps' settings where possible.
With MoLock: While locked, MoLock blocks Task Manager and the Ctrl+Alt+Del options (always restored after). A watchdog brings it back if someone kills it — still locked if it was locked — there's an optional guard service, and you can require your password to open Settings or exit. New in 2.5: a wrong password when someone tries to close or pause it, or ending it from Task Manager, sends you a tamper alert with a photo, and 3 wrong tries lock the screen.
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Remote-access and screen-recording apps left open
- Everyday example
- A remote-support app is still running after someone helped you, or a meeting is still sharing your screen, and you've walked away.
- What could be exposed
- Whoever is on the other end could see or control your screen while you're not there.
- How to protect yourself
- Close remote-access apps when you're done, and uninstall the ones you don't need.
- Set remote connections to require your approval every time.
- Stop screen sharing before you leave a meeting.
With MoLock: From Telegram:
/windowslists open windows,/screenshotshows you the screen,/killwith an app name closes it, and/locklocks the PC right away. -
Café sessions on public Wi-Fi
- Everyday example
- You're working in a café on its Wi-Fi, and you get up to order, leaving the laptop open on the table.
- What could be exposed
- An unlocked device in front of strangers, on a network you don't control.
- How to protect yourself
- Ideally don't leave the laptop alone; if you must, lock it.
- On public networks choose "Public network" in Windows and make sure sites use HTTPS.
- Save sensitive tasks like banking for a network you trust.
With MoLock: Pair your phone over Bluetooth as a trusted device: walk away with it and MoLock locks by itself. If someone comes near the laptop while you're gone, the camera notices and their photo reaches you in about a second — and you can sound a loud siren straight from the alert. And your phone is always with you for
/lock. -
"Can I use your PC for a second?"
- Everyday example
- A colleague or guest asks to use your PC "to print something" or "check my email", and that second becomes ten minutes you're not watching.
- What could be exposed
- Everything in your session is open to them: chats, files and signed-in accounts.
- How to protect yourself
- It's fine to politely say no — or stay with them.
- Open a guest profile in the browser, or a separate guest Windows account.
With MoLock: Lock before you step away and MoLock takes it from there: camera motion detection sends you a photo on Telegram within about a second if someone sits down at the locked PC — even without touching it — or moves the mouse or types. You can also record evidence on every unlock, and put a note on the lock screen with
/lockmsg. -
Technicians and repair shops
- Everyday example
- Your PC goes in for repair and the technician needs to sign in to Windows to test it, so you hand over your password.
- What could be exposed
- Anything in your account could be seen or copied — even just out of curiosity.
- How to protect yourself
- Back up, and move sensitive files off the PC before handing it over.
- Create a temporary Windows account for the technician instead of sharing yours, and change passwords afterwards.
- Sign out of your browser, chats and important accounts.
With MoLock: MoLock's settings are protected with strong encryption on your own PC, tied to your Windows account, and your password is stored scrambled — never as plain text. If the technician needs the PC without the lock, close MoLock yourself from the tray with your password — it stays closed until you open it again.
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Webcam worries
- Everyday example
- You've read that webcams can switch on without you knowing, and now it's uncomfortable having one facing you all day.
- What could be exposed
- Any app with camera permission can use it — what matters is knowing which apps have it.
- How to protect yourself
- Check Windows camera and microphone privacy settings, including which apps used them recently.
- A sliding webcam cover is a simple, reassuring option.
- Remove apps you don't need that ask for camera access.
With MoLock: MoLock only uses the camera while the PC is locked — for motion detection and the evidence features you control — or when you ask your own bot for
/photo. Motion detection looks at the picture on your PC; nothing is uploaded except the alert photo, which goes to your own bot, and the developer never receives any image. With motion detection off, the camera switches off a few minutes after locking so its light doesn't stay on. If you cover the camera, just note that evidence photos won't capture anything.
Daily habits
Small habits, big difference
Win + L before you stand up
Make it as automatic as locking your front door. One second, and your PC is locked.
Strong, unique passwords
A different password for every account — let a password manager remember them for you.
Two-step verification
Turn it on for email, social and banking. Even if a password leaks, the account stays protected.
A Windows account for each person
Separate accounts for the kids and for you, with admin rights for you only.
Encrypt your drive
BitLocker or Device Encryption protects your files if the device is stolen.
Keep things updated
Update Windows, your browser and your apps — most updates close security holes.
Antivirus switched on
Keep Windows Security on and current, and scan anything you're unsure about.
Log out of WhatsApp Web
Check "Linked devices" on your phone now and then and remove any you don't need.
Review camera & mic permissions
In Windows privacy settings, see which apps have access and which used it.
Back up
Keep a copy of important files on an external drive or in the cloud, so nothing is lost for good.
Quick checklist
Secure your PC in 10 minutes
- Set a Windows sign-in password and keep the Windows screen timeout on.
- Turn on BitLocker or Device Encryption in Windows Settings.
- Check that Windows Security is on and updates aren't paused.
- Turn on two-step verification for your email and main social accounts.
- Review WhatsApp "Linked devices" and any accounts signed in on this PC.
- Download MoLock, run MoLock.exe and finish the setup wizard.
- Save the recovery code from setup somewhere safe, away from the PC.
- Pick the idle time after which MoLock locks, and enable the warning countdown if you like.
- Link your own Telegram bot from the setup wizard in about two minutes (guide).
- Keep camera motion detection and tamper alerts on (they're on by default), and adjust motion sensitivity if needed.
- Turn on wrong-password evidence if you want it, and try a wrong password yourself to check it reaches you.
- Require your password to open MoLock's Settings and to exit it.
- Optional: set a duress password, and add a trusted USB key or Bluetooth phone.