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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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
1k views

What is a AUTH-KEY in the security of the computers?

I'm studying security in computers and in particular the URL Spoofing. I understand that a form of URL spoofing is phishing. Then I read that a countermeasure against phishing is the authentication ...
6
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3answers
7k views

How many unique house keys can possibly exist?

A Yahoo! answers user suggested that there are 5^5 possible unique configurations for a physical key, but the answer wasn't sourced. I wondered if anyone had similar numbers for how many possible key ...
6
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1answer
4k views

What camera resolution is required to identify human faces?

I've been asked to recommend an IP-based security camera in attempt to prevent, or at least record, repeated acts of vandalism occurring at the front of a property. Budget is a concern (The damage ...
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3answers
14k views

Is there any virus that can cause physical damage

Like damaging a chip on the motherboard, increase the fan's speed till something explodes or anything similar to that. I am not an IT guru but I never came across a malicious code that couldn't be ...
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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 ...
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2answers
58 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 ...
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5answers
392 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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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 ...
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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 ...
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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, ...
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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 ...
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1answer
44 views

Cell number and IMEI details

Is there a device I can install to collect cell number and IMEI numbers for people within a vicinity? We want to install in an area for security reasons so that we are able to trace the people in the ...
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2answers
33k views

Is there any way to tell if CCTV is on or not?

Is there any way that an attacker can identify if a CCTV camera is on/operational without direct physical access to the cable/camera? If it is on, is there any way an attacker can tell if its being ...
5
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1answer
530 views

Security differences between Passive and Active RFID tags

Most people are aware there are two types of RFID tags, active tags (ones that contain a power source of some kind) and passive tags (ones that are powered by the RF field). I'd like to know if ...
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4answers
2k views

Are keys or RFID tags more secure access control solutions?

Just musing to myself, what is the preferable access control mechanism in high security environments? Locks and Keys or RFID tags? Going under the assumption that the locks/keys are not knoow to be ...
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1answer
130 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 ...
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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, ...
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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 ...
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 ...
2
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2answers
2k views

Best practices for notebook anti-theft. Computer tracking

I am buying a new Thinkpad with an in-built GPS/Cellular modem. I am thinking what are the best practices for making the notebook secure in case of theft. I am planning to do full disk encryption and ...
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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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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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1answer
169 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 ...
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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 ...
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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. ...
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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 ...
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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? ...
75
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6answers
11k views

Can a lock picker slowly undermine the security of a deadbolt door?

I have a space for computers secured with a simple deadbolt. Someone keeps coming to pick the lock. While working there, I have scared them away three times. There are cameras, but not in useful ...
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 ...
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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 ...
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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 ...
0
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2answers
244 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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2answers
340 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 ...
0
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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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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 ...
3
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4answers
2k views

Are malicious scripts in batch files detected by antiviruses?

We have many scripts in shared folders in our IT Department. Are malicious scripts in batch files detected by antiviruses?
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4answers
2k views

Is it possible to prevent a physical attack on full disk encryption?

I've been researching into some methods to ensure that disk encryption keys can't be stolen, and one that I've come across is called TRESOR. With this kernel patch, you can create a partition that is ...
11
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6answers
11k views

Is it safe to use virtual machines when examining malware?

We want to study for the CEH program and have downloaded 12 DVDs that 6 DVDs are software key-loggers, Trojans, etc. that are all detected by antivirus. This prevents us from examining them and ...
17
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3answers
54k views

Can law enforcement track a criminal through dynamic IP address?

I ask because a week ago my home was broken into and, among other things, my iMac computer was stolen. I am desperate to get it back because it has all the pictures of my daughters from the last ...
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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 ...
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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. ...
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 ...
2
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3answers
854 views

Is there such thing as a password enforced write protected flash drive?

We would like to provide a flash drive to a client, that they can boot to, which includes a read-only operating system of our own customization, probably Linux. Every boot, it starts from clean slate. ...
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13answers
7k views

Laptop Anti-Theft Measures

A law firm I've been in contact with has recently been broken into 3 times in the past 4 months. In spite of a number of laptops and other equipment containing sensitive information being stolen, the ...
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1answer
267 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 ...