The use of physical measures (such as locks and tamper-proofing) or policies (such as Clean Desk) in order to protect sensitive information from unauthorized access.

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46 views

Handwriting/cursive education is on the decline. How does this affect signature-based authentication?

More and more schools are not teaching cursive handwriting, and many are considering it more of an art, or optional in the curriculum. I assume this will have an impact on the ability to forge a ...
1
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1answer
44 views

What security considerations should I keep in mind when setting up home automation using IFTTT?

My next personal project is going to be setting up some basic home automation for my parents (not very tech savvy but have a potential to learn). This involves some thermostat, lighting and ...
2
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2answers
57 views

Any solutions out there to counter shoulder surfing?

I'm talking about an unknown or undetected physical presence who may be looking over your shoulder as you view or type in sensitive information or passwords. Most likely to happen when you are ...
0
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0answers
60 views

Securing data with three USB drives problem

Here is a problem. There is a single piece of sensitive data, which is subject to update and invalidate previous non-updated copies (think of password-protected Bitcoin Core wallet.dat). There are ...
0
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0answers
51 views

How do organizations with BYOD policy handle code theft? [migrated]

Some corporations have a Bring Your Own Device (BYOD) policy, and some may allow their employees to take their laptops home for usage. What if an employee takes the code and develops something outside ...
0
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2answers
209 views

Is PIN affective security for credit cards considering it's not always needed?

This question asked about how having a PIN is safer than signing the receipt when doing a credit card transaction (personally the question makes no sense to me as it's just a scientific fact that a ...
1
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1answer
129 views

Everykey (Bluetooth master key) - is it really secure? [closed]

Obligatory disclosure I have no relation to the Everykey company and do not mean to promote them in any way. I came across the product Everykey that claims to be "your only key" by allowing you to ...
1
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1answer
44 views

Difference between local and physical attack vector in CVSS version 3?

In CVSS version 3, there are four different attack vectors. I am not able to differentiate between local and physical. Say, if I want to report "absence of logout button" I will use physical as ...
4
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1answer
79 views

What medium for storing full-disk encryption keys is easy-to-use as well as easy-to-destroy?

If I were to frequently work on sensitive data on a LUKS partition and wanted to be able to quickly destroy the keys to it, I figure it would make sense to— encrypt that partition with a key file, ...
81
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9answers
12k views

Secure USB cable for charging in untrusted environments

On a long haul flight, I imagine that charging a phone (in flight mode) with the inbuilt USB port on the head rest would be a security risk. Could I mitigate that risk by taking a regular USB cable ...
0
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0answers
14 views

Can confidential data be gotten from a “hibernation file”? [duplicate]

When a computer hibernates, AFAIK a copy of the RAM is saved into a file on disk. Is this a potential security flaw, knowing someone can take the disk and read the RAM freely?
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2answers
157 views

Can I repair a cut-through credit card?

On many cards there's the instruction to, if found, cut it in two pieces and mail them to some address. I'm wondering a bit about the security of this and if I could recover some data. It's not ...
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1answer
168 views

How can I check if someone tampered with the CCTV footage or system?

Recently I was staying in a hotel and I had some very important belongings stolen there in the hotel which is definite. The problem is that no one entered my room after I left the room (2 times for ...
75
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8answers
18k views

How is 'Removing RAM' a security risk?

Today I was watching a video on 'Ethical Hacking' where, while discussing hardware attacks, the narrator said: Removing RAM or components from a desktop or a laptop Here's a screenshot: I ...
6
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6answers
568 views

Crash a computer using waves or similar techniques?

I am trying to prevent a potential attack, by first learning how to perform it. Pretend there is a cheap £20 - £50 computer, which an attacker with physical access to wishes to crash. This computer ...
0
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1answer
89 views

Windows security & data protection

I work for a hotel. The hotel stores a MySQL database online. This database only contains a Reference ID, number of nights and so on, but no private data. No names, no personal information on guests. ...
36
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7answers
7k views

Is it possible to improve brute-force guessing of a password with a picture of the keyboard used to enter it?

Is it a bad idea to post a photo of your keyboard to social media? Can I look at a photo of a keyboard and determine the password of an account? Assuming a certain (set of) password(s) is the most ...
2
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4answers
110 views

Are there any quick-erase devices with a small memory available for storing key information?

I would like to set up my computer's full disk encryption to unlock with a key file (preferably one that uses the SD card interface, but I'm not particularly picky) because it's annoying to enter in ...
5
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3answers
224 views

Do you have to ban cellphones and paper to be PCI compliant?

Today I heard of a call centre that you are not allowed to bring cellphones into or take paper out of. This is allegedly to be PCI complaint. Is this true? What is the reasoning? This seems like ...
23
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5answers
4k views

Does multiple numbers per button have an effect on security?

I recently came across an electronic deadbolt like this: The keys have multiple numbers per button, 1|2, 3|4, 5|6, 7|8, 9|0 Is there any way that this increases the security of the electronic lock? ...
23
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4answers
3k views

What are the alternatives to door passcodes?

Passwords have been a problem since the dawn of computing. They tend to be either so complex that no one can remember them, or so obvious that anyone could guess them. ... Some users ...
3
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0answers
43 views

What is the current state of RFID / NFC security?

I'm attempting to do some RFID and NFC cloning and replaying research, as I'm hoping to be able to demo physical security as an attack vector to a few of out clients and prospects. The downside (...
4
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1answer
77 views

Wiping magnetic stripe on card with magnet?

I asked a question a while back on using magnets (for example powerful Neodymium ones) to wipe a HDD, and got shown a good article proving it is not possible to wipe data. Pretend I am about to ...
1
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0answers
28 views

Can a JTAG device be attached to a running system?

JTAG, or Joint Test Action Group, is a standard for debugging. Many modern motherboards, both on mobile devices and on desktops and workstations have JTAG ports. They allow a CPU to be controlled like ...
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2answers
338 views

Can motion sensors be disabled by lasers without triggering the alarm?

I remember when I was a kid and was waiting for someone in a long hall, there was a motion sensor and security panel by the door. To kill time, I would go away from the door, then try to move so ...
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1answer
28 views

Why don't terminal IDs prevent unauthorized entery?

I'm studying for CISSP and had gotten this question wrong. I also found it and the correct answer online, but still don't understand the reasoning. Source Which of the following controls is ...
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5answers
391 views

Mitigating forensic memory acquisition when an attacker has physical access to a workstation

My question regards whether or not the mitigations I use are appropriate for my threat model. Please don't jump to conclusions and say "you need to use locks" or "you can't leave your computer ...
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2answers
238 views

attacks via physical access to USB (dma…?)

I wonder if USB can be exploited by someone with physical access to a reasonably secured computer. For example a kiosk, or laptop attached to a desk. Obviously, boot sequence should be secure (disk ...
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3answers
113 views

Is there a way to secure a Linux machine in a way that no one else (but me) can access its contents? [closed]

And I mean, even if someone tries rooting with a Live CD, even if one takes the HDD away and plug it in somewhere else, etc... I want to be able to give a client a machine with a service running, but ...
1
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1answer
51 views

Location/proximity based decryption using separate machine

I read a long thread where the whole issue was revolving around deriving decryption keys from GPS location. This has huge issues, as being present at a location is not needed to know the location. ...
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1answer
266 views

How to protect my laptop screen from being hacked? [closed]

My laptop screen has been hacked, and I think that it is by Van Eck phreaking method. The attackers can see my screen, they are seeing my screen right now. I never even talk to them and these ...
3
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1answer
63 views

Information Security on a lost android phone

Recently, my android mobile phone was lost/stolen. I had logged into several applications such as Facebook, Paytm, etc. Thus, there are chances that my personal/ transaction details might be leaked. ...
6
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1answer
151 views

What is collusion and how does seperation of duties prevent it, or fail to prevent it?

I'm studying for CISSP and came across the term "collusion". I understand it means when people work together to steal something, but don't quite get it. For example, if two gunmen rob a bank would ...
3
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5answers
352 views

How should I store a physical written copy of my password? [duplicate]

I can employ all the fancy encryption and the randomest of passwords to my hard drive, but it won't do me any good if I don't remember how to log in. It seems sensible to write down my password, then....
0
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1answer
133 views

Securing a public computer meant for banking

I sometimes visit my bank personally to handle certain formalities. Inside there is a booth containing a computer and all equipment necessary to log in to the online banking service. The computer is ...
7
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4answers
320 views

Must a system be insecure against physical access? If so, why?

Inspired by: Why don't OSes protect against untrusted USB keyboards? Related: What can a hacker do when he has physical access to a system? (I address the points of its main answers below.) There ...
104
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8answers
19k views

My school wants to keep the details of our door authentication system a secret. Is that a good idea?

So, I am designing a door authentication system (can't really go into more detail) for our school, so that only authenticated persons can go through a certain internal door. They hold that its inner ...
81
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14answers
11k views

How can I protect myself from false accusations when our company practices password escrow?

During an internship for a small company, my boss created an account for me, so I generated a password and I used it. The next day, my boss told me to write down the password of my account on a piece ...
4
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1answer
136 views

Motion sensor door locks

I have seen several offices with electric locks for entry that have a sensor for exit. I assume it's some kind of motion or object detection sensor. This is odd because in many cases, there's a ...
3
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1answer
60 views

Loss of physical locks/password to safes

Safes can keep important information like part of a dual control password, smartcards and pendrives, and so on. What would be the best practices to prevent loss or damage to a physical locks to a ...
2
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2answers
100 views

Are passport stamps a reliable security feature? [closed]

Most countries in the world still place passport stamps on arrival/departure into the country. Theoretically it is then possibly to calculate the length of a person's stay in a specific country. Is ...
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0answers
42 views

What else can I do to protect my accounts? [closed]

I am trying to make sure all my accounts are secure from unauthorised access and have turned on all security measures that I can find to make sure my stuff is protected. Here is what I have in place: ...
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2answers
92 views

Defense in depth

How is defense in depth strategy different from network security policy? What is the need to name it a "Defense In Depth", although you may simply name it "Network security policy"? Secondly if DID ...
3
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2answers
97 views

Shutdown if case opened

Assume the user has a full disk encrypted HDD in which their OS and files reside. They also have made attaching USB or any other device without first allowing it cause an automatic shutdown which ...
2
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0answers
28 views

Reasonable means of security in commercial dealings [closed]

I am writing a paper from a legal standpoint and I'm suggesting legislation for a new duty of care for private companies in the safeguarding of customer's personal information. This will not apply to ...
54
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9answers
7k views

Why would security cover things like natural disasters?

I'm taking a course which is designed with the CISSP certification in mind. Though the class is categorized as software engineering, we talked a lot about physical security and, in particular, floods, ...
2
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2answers
667 views

What is the security of random code for authenticating products?

I have seen a startup (Verify Kero) that is building a product for verifying consumer goods. It places a 16 digit secret code under scratch-able coating. Consumer finds the code behind coating and ...
19
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2answers
4k views

Why did the Papal conclave use a Faraday cage in 2013 when selecting the new pope?

The Wikipedia article about Faraday cages has this anecdote: A Faraday cage was used in 2013 by the Vatican to shield the Sistine Chapel from electronic eavesdropping during the secret papal ...
42
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8answers
5k views

Is physical security less important with disks on a server being encrypted?

If you could get physical access to a server, you could change the root/admin password even if you did not know the current password. However with encrypted disks, I don't think this is possible (...
36
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3answers
2k views

Evaluating the security of home security cameras

My parents have a vacation home out in the country and are looking to setup a home surveillance system for remote viewing. I've heard that there can be serious vulnerabilities in these products. What ...