12 votes
Accepted

Best way to know if someone opens my notebook

Apart from keeping the diary in a locked drawer, here are some steps you can take. Put the diary in a drawer, close the drawer and then pull it back open just a few millimetres. You can tell if ...
Weather Vane's user avatar
  • 4,600
10 votes

How can I safely destroy a hard disk?

TL;DR probably you don't need to, unless you want visual, physical proof of data loss. Chances are that what you really want to do is "be sure it cannot be read". Now you've probably heard that ...
LSerni's user avatar
  • 281
10 votes

How can I know the people following me just use multiple cars but not a GPS tracker?

The easiest way to check for GPS trackers: take your car to a garage, have them put the car on a lift. Inspect the underside, look for small rectangular boxes. An internet search gives you an idea ...
Hobbes's user avatar
  • 6,304
10 votes

How do I stop my room's lock from being opened with a coin without unscrewing it?

At its simplest, a door hook on the inside of your door will do the job for about $2. at a hardware store. You twist the hook into one side of the door and the loop on the door frame (or vise-versa). ...
Stan's user avatar
  • 14.2k
9 votes

How can I know the people following me just use multiple cars but not a GPS tracker?

With all due respect, There's no one following you at all. There's no GPS. There's no 'professional multicar tracking system'. They're not in your cell phone, assuming you have one. I know for sure ...
lly's user avatar
  • 255
8 votes
Accepted

How can I safely destroy a hard disk?

I drive a 4" nail through the casing, near the motor. With a hammer and a bit of wood under the drive, it's easy. No need to open the case. If you have a nail gun, it is perfectly capable of driving ...
NL_Derek's user avatar
  • 294
7 votes

How can I safely destroy a hard disk?

There are a few reasonable ways to do this. Destroying the platters Hard drives work by using magnetized platters. The easiest way to destroy these would be to simply open the hard drive casing (...
Connor Bell's user avatar
7 votes

A housemate-moving-things-around-in-my-room-to-unnerve-me situation: concealed camera and dummy camera as a way forward?

Leaving aside the questions of what's really going on, and whether you are being harassed or the housemate is cleaning--the life hack is to put a lock on your door. Another solution is that during ...
piojo's user avatar
  • 1,242
6 votes

Keeping valuables safe whilst in costume

Get something that is generically known as a "running belt". These things are fantastic; everyone should have one. They wrap around your waist or hips, and you can wear them under just about anything....
Robert Cartaino's user avatar
6 votes

How to remove/hide/destroy senstive information written on paper without a machine?

Eat it If it's a small amount of paper, then eating it would be very effective.
James's user avatar
  • 1,894
6 votes
Accepted

How to remove/hide/destroy senstive information written on paper without a machine?

Ripping it up is as secure as the obfuscation you can apply to the task. A shredder is actually not a very secure method, unless your total shredded quantity is high. Re-assembly is just a jigsaw ...
Tetsujin's user avatar
  • 2,231
6 votes

Destroy discs in bulk

Microwaving each disc for a couple of seconds will be sufficient to destroy it - see https://www.youtube.com/watch?v=lKd92oU9ivs from about 10 seconds in - this is a slow-mo video, the actual effect ...
Caius Jard's user avatar
  • 2,749
6 votes

How to get package into house discreetly?

Sounds like you are ordering something from Amazon. Option 1: Generally Amazon will have a 1 day or 2 day shipping options; now with this knowledge if you know your parents will be gone a certain day ...
SlinkySr's user avatar
  • 126
5 votes

How to remove/hide/destroy senstive information written on paper without a machine?

If you have a lighter or a match stick, burning it will be a good option. Off-course, it's better to burn it on a metal surface away from flammable substances. If you can't find metal surface, you can ...
Varun Sharma's user avatar
5 votes
Accepted

How to protect coffee machine from others in a public space?

There is a type of plug/socket combination known as a Walsall Plug, which looks similar to a standard 13A UK plug, but the pins go the other way [90° from standard]... Left, Standard right Walsall... ...
Tetsujin's user avatar
  • 2,231
5 votes
Accepted

How to get package into house discreetly?

It sounds like you have problems getting anything, so your choices are fairly limited. A) Have a trusted friend pick up or receive the package or B) intercept the delivery driver outside (also ...
pboss3010's user avatar
  • 361
5 votes
Accepted

What kind of security tag is this and how to remove it?

If I were you, I'd send the goods back and demand a refund. If the seller isn't the manufacturer or a trusted store listed by the manufacturer, I'd report the seller for possible theft or fencing. ...
Elmy's user avatar
  • 2,996
4 votes

Keeping valuables safe whilst in costume

If your colsplay clothing allows for it, find the pouches that hang around your neck, and and are worn underneath your clothing. Image taken from KevinCoffey.com, though, it's unclear if the website'...
IQAndreas's user avatar
  • 277
4 votes

How to remove/hide/destroy senstive information written on paper without a machine?

I often use your idea of writing over the letters with other letters. But I always write over every letter with an "8" and then an "X". That makes every letter look like exactly the same weird ...
BrettFromLA's user avatar
  • 11.6k
4 votes
Accepted

Keep room door partially open at night, allowing air flow but prevent anyone from entering?

As far as I understand you want to sleep in a room while door is slightly open where there are many risks walking in front of your door. I will probably do two things 1- Lift my door a little bit ...
melic's user avatar
  • 235
3 votes

How to protect coffee machine from others in a public space?

Option 1: Put a sign on the machine In a Uni environment, I think that putting a sticker on the coffee machine telling that it is for your group only would be sufficient. If someone else uses the ...
Tony's user avatar
  • 425
3 votes

Keep room door partially open at night, allowing air flow but prevent anyone from entering?

There are several kinds of hardware for sale for just this. Which are available where you live depends on the local market, so likely the ones I find on internet round here might be available where ...
Willeke's user avatar
  • 2,375
3 votes

How to remove/hide/destroy senstive information written on paper without a machine?

Flush it Flushing it down the toilet would also work, if it is small enough not to clog anything.
James's user avatar
  • 1,894
3 votes

How can I safely destroy a hard disk?

There are powerful rare-earth magnets in most disk drives, so simply unscrew the case and salvage the magnets. Merely removing or even touching the platter will probably make it unreadable, due to ...
DrMoishe Pippik's user avatar
3 votes

How can I safely destroy a hard disk?

Simpler than some of the other methods, but more secure and reliable than the simpler methods, is to disassemble the drive (as explained in other answers), then use abrasives, i.e. sandpaper or ...
Zeiss Ikon's user avatar
  • 9,802
3 votes

How can I know the people following me just use multiple cars but not a GPS tracker?

I can't think of many ways to prove there is no GPS on your car. But you can easily show that they are monitoring you in ways other than a GPS (Which doesn't imply there is no GPS, just that it's less ...
Aubreal's user avatar
  • 161
3 votes

How can I know the people following me just use multiple cars but not a GPS tracker?

I propose that you work with someone to double your resources and disorient anyone else who might be interested in causing you to be unhappy. Keeping you isolated is something they want. Working with ...
Stan's user avatar
  • 14.2k
3 votes
Accepted

Need sensor to sound remote alarm when dog crosses a line

You can look into motion sensors. These can be fairly simple, like the ones stores use to detect people entering their store, or it can be something you build yourself. The off-the-shelf kind have a ...
computercarguy's user avatar
3 votes

Best way to know if someone opens my notebook

Additional tactics include lightly dusting the jacket with talcum powder or placing a strand of hair between the pages.
Jonathan's user avatar
3 votes

What kind of security tag is this and how to remove it?

First off, let's talk a bit about the anatomy of these tags and how they work: Inside the bulge on the tag is some kind of device (blue) that can grip a metal pin, likely held in place by some weak ...
Caius Jard's user avatar
  • 2,749

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