The protection of personnel, hardware, programs, networks, and data from physical circumstances and events.

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19
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5answers
3k views

What is the most security benefit of a clean desk policy?

Starting to study for Security+ using Darril Gibson's book I took the pre-exam and one of the latest questions is “What is the most security benefit of a clean desk policy?” The choices are: ...
0
votes
2answers
384 views

bootp enabled by default on dhcp reduce security?

by default in Microsoft DHCP server configuration Bootp is enabled and choose both(accept DHCP request and Bootp ) i know that how this work and know about how configure two DHCP Server by Bootp ...
1
vote
3answers
245 views

Requirements for a smartphone anti-theft App

I recently installed Cerberus in my [personal] Android device to get some protection against theft (I'm not really interested in protecting its data, but rather in increasing the odds the device will ...
3
votes
3answers
2k views

Is there is a way to lock my USB port over the device physically?

Is there is a way to lock my USB port over the device physically ? For example I am connecting the USB mouse and keyboard on an public computer but I do not want anyone to remove them physically. I ...
2
votes
2answers
277 views

What are my options for securely printing an OTP Scratchcard?

I want to print and distribute several One Time Passwords (OTPs) that can't be easily disclosed to a 3rd party in transit. (think the physical version of a TLS session for private secrets) To me ...
5
votes
3answers
556 views

Live Linux which does not mount any hard drive in the computer

I am searching for a Linux System which runs from a CD and does not mount any hard drive of the computer. I want to prevent any possiblity to write something on the hard drive of the computer and on ...
13
votes
3answers
23k 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 ...
5
votes
3answers
5k views

How easily could be truecrypt and EFS cracked in this scenario

I suspect some info was subtracted in the past months from my laptop. Therefore Im looking for methods to encrypt my data. I want to try using truecrypt for the sensitive files folder plus EFS for ...
0
votes
6answers
2k views

Is an ATM alert system triggered by typing the PIN in reverse a secure solution?

Picture an ATM security system where, if the user types the PIN in reverse, the ATM alerts police, the customer's bank, or other parties. Are there any ATM manufacturers that use this or a similar ...
7
votes
5answers
28k views

Can an employer access Whatsapp messages if you are using their servers?

Does anyone know if an employer can access whatsapp messages if you are using their servers? Whatsapp apparently say the messages are encrypted, but I'm not sure about this.
11
votes
1answer
492 views

Slot machine segfault: what can we determine?

We walked into a casino and saw this near the entrance. I don't have a specific question, but is there anything that would be interesting to share and explain from the image?
1
vote
1answer
140 views

how to protect from Network scanner on android?

How can I block and detect network scanners on android platforms to stop scanning vlan of my hot spot. My question is: which scanners they use? how can i detect such scanners? Can i protect ...
2
votes
4answers
807 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?
2
votes
3answers
661 views

Physical Security for USB Keys and Systems-on-a-Stick

Do there exist physical security devices for USB sticks that serve a function analogous to laptop locks (i.e. preventing smash-and-grab type attacks)? If so, what are they and to what extent do they ...
7
votes
1answer
955 views

What is the difference between Simple Power Analysis and Differential Power Analysis?

What is the difference between Simple Power Analysis (SPA) and Differential Power Analysis (DPA) and why is it not possible to do an SPA attack on FPGAs? My basic understanding is they are ...
0
votes
3answers
292 views

Keyless entry security systems and HIPAA implications

We are upgrading our office to have badged security doors. What I would particularly like to know is if Keyless Entry systems exist or are of decent quality. By this I mean, I would like the doors ...
-3
votes
1answer
8k views

windows firewall disabled with Norton Internet security or Norton Smart Firewall? [closed]

My Company decide to Change antiviruses and anti-spywares and firewalls. How to apply changes in all clients and servers safety? Norton say: ( in this article): When you are using Windows ...
7
votes
3answers
426 views

Sourcing hardware that is least likely to contain backdoors

I understand that CPU silicon (for example) is scrutinized for backdoors but there are other aspects of a computer system that may "leak data" to the outside world unbeknownst to the owner regardless ...
2
votes
4answers
531 views

Detecting and filtering data over AC power lines?

Given that it's possible for the average consumer to send covert signals over normal AC lines how can an IT department identify and filter out this communication? I'm not sure how difficult this is ...
0
votes
3answers
4k views

why Windows Firewall in XP cannot block outbound connections

wikipedia say: XP's Windows Firewall cannot block outbound connections; it is only capable of blocking inbound ones. another article says: XP defends you with your traffic coming from the web but ...
1
vote
1answer
112 views

Best way to secure file removals in Windows remotely

I have Windows 2008 R2 box on colocation. I want to remove certain files with a high degree guarantee it cannot be recovered from physical HDD access. Could someone please explain what levels of ...
0
votes
3answers
308 views

Petraeus scandal - what would have been a better way to communicate electronically [closed]

Not a security professional here but .... having read through how it happened, it's clear sending these emails from the shared account by Paula Broadwell was the problem (if I understand correctly). ...
-4
votes
6answers
7k views

Will antivirus detect all keyloggers?

Our company schedules Security Training courses for our personnel. In order for us to test them, we develop code such as keyloggers which we email to our personnel to detect stupid personnel, and of ...
19
votes
2answers
3k views

How can vending machines be hacked? And how can I prevent it?

I am developing a vending machine and want to make it secure. In a comment to my previous question, @Polynomial said "Vending machines (and similar devices) can often be pwned via buffer overflows on ...
7
votes
6answers
3k 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 ...
4
votes
2answers
1k views

How does syskey in Windows increase the security in a domain?

I use syskey in windows XP and Windows 7. I've read Microsoft's article but I have questions. How does this solution increase security? What are differences between using Syskey in a client that ...
86
votes
13answers
8k views

Why do we lock our computers?

It's common knowledge that if somebody has physical access to your machine they can do whatever they want with it1. So why do we always lock our computers? If somebody has physical access to my ...
2
votes
2answers
449 views

A security checklist for choosing an internet hosting service provider for a virtual private server?

I am in the process of choosing an internet hosting service provider for my website. Besides looking at the reputation of the hosting provider through internet forums, is there a more concrete way of ...
31
votes
3answers
1k views

How can you judge the physical security of a padlock?

I recently learnt to pick locks. Eager to test out my skills, I tried picking a padlock I'd been using on a secure storage box for a number of years, and found that it only had one pin - I can get ...
3
votes
3answers
526 views

What are the security implications of phone based keyless entry systems?

I have just been reading about Lockitron which promises to provide phone based keyless entry for the home. As great an idea as this sounds it strikes me that it could come along with some very serious ...
3
votes
3answers
2k views

is it possible to create a login “key” out of a USB drive?

I was recently thinking about keeping my computer secure from physical access, and i decided that the safest way to keep my data under lock and key, was to do just that: Create a lock and key out of a ...
6
votes
3answers
204 views

Securing mail deliveries in a multi-tenant office building

I am concerned that that postal mail (and other deliveries not requiring a signature) may be at risk from theft or unauthorised access. My company is based in a multi-tenant office with an unattended ...
3
votes
1answer
513 views

Does setting a firmware password add security if FileVault 2 is enabled?

On an up-to-date OS X computer with FileVault 2 (whole-disk encryption, minus the recovery partition), is any security gained by setting a firmware password, as well?
6
votes
3answers
2k views

What can a hacker do when he has physical access to a system?

I mean, I'm a tech guy here in my region (not a hacker...). When I sit in the front of another person's PC, I notice a little fear about what I can do in the system. It's obvious that I will not ...
5
votes
3answers
1k views

How do I improve the physical security of a rack cabinet?

I've got an 8U 19-inch server rack cabinet with two locks - one on the front panel, one on the rear panel. The locks are small cam locks, but the cam part is rather thin and flimsy-looking. I could ...
3
votes
1answer
442 views

When a company asks to test physical security, what are some techniques one could use to gain entry?

When a company asks to test physical/infrastructure security, what are some techniques one could use to test employees? This could include good excuses to gain access to some hardware/software.
1
vote
3answers
136 views

What would be a good way to guarantee security of theft and loss of sensitive data in a shared rack?

Two of my servers are in a shared rack, we secure them by adding frontcovers to the machines. The DC is always recording with a camera when one of the shared racks is opened and they write down what ...
16
votes
3answers
610 views

Risks of Mullions in High Security Areas

I have a storage space full of information assets. The room itself is sound; there are no windows, the walls go all the ceiling, and there is only a single entrance with two good stout doors and high ...
23
votes
7answers
2k views

Protecting critical state infrastructure from the aftermath of a nuclear blast

Countries rely on computer infrastructure for a huge percentage of communications and military management, as well as utilities like electricity. Unfortunately, nuclear attacks release massive ...
15
votes
4answers
1k views

How do you prevent physical backups from being stolen?

I'm sure, by now, we're all aware of the need to encrypt backup disks, but what can be done on the physical security side of things to prevent backups from being stolen or damaged? Particularly: ...
0
votes
1answer
480 views

Standards for physical Access Control systems

Hoping to help protect an IT installation, I've been looking into physical protection systems, specifically Access Control for protected areas. The field is quite big. Are there any US or ...
3
votes
1answer
2k 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 ...
6
votes
2answers
3k views

Safely disable firewire/thunderbolt, patching up DMA exposure

I understand that Firewire 400/800 and Thunderbolt have DMA enabled, and a malicious hardware device can easily read and manipulate system memory at will. If I disable the software drivers for these ...
3
votes
2answers
209 views

What value security wise, if any, does a digital handwritten signature have?

Here's an example of what I mean: (It's basically the same thing as a traditional signature.) Given I've never seen someone fail this control, it's unclear to me what real security such a system ...
1
vote
1answer
369 views

What makes a secure smartcard secure? Is contactless/RFID better?

In short what security features exist that I should look for in a smart card? What physical features exist, which are important? It appears smart cards may exhibit different levels of wear and ...
2
votes
2answers
689 views

External IP same as Internal IP security

Where I live my ISP does not give IP addresses out. My external IP address is the same as my external if I plug directly into the wall with no router. My ISP does give everybody a "router", that is ...
2
votes
3answers
561 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. ...
6
votes
1answer
813 views

Cutting and sniffing fiberoptic cables - time before detection?

Suppose you'd cut a fiberoptic cable with two razor sharp mirrors, reflecting the traffic out into your sniffing device and then back into the wire again. How fast would you need to get the traffic up ...
2
votes
3answers
780 views

Cheap door logging for home?

Does someone here knows a cheap DIY door logging system? What I have: - 2 doors that needs to be logged - 1 netbook (running OpenBSD with internet connection & root permissions), the two doors ...
3
votes
1answer
2k views

good product to physical lock down a mac mini server?

Since the recent theft of a mac mini and macbook pro Im looking into products to lock down the mac mini server 2011 model. There are many cable solutions out there like kensington but the mac mini has ...