The physical components of an Information Technology system. It can consist of network equipment, servers, CPUs, hardward security module, smartcards, etc. When using this tag, also include an additional tag for the specific type of hardware.

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What buses carrying sensitive information on a running computer are vulnerable to sniffing?

Has there been any research on what buses in a computer can be analyzed while they are live, without rebooting the system to insert a proxy device? For example, I imagine I2C would be very easy to ...
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1answer
77 views

Is it possible to build completely verifiable hardware?

Reproducible builds like they are used for Bitcoin, Tor or the Debian package repository aim at making sure that the binaries you install exactly equate the source code that they are supposed to be ...
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1answer
311 views

Autopsy/SleuthKit in the courthouse? [closed]

I am studying digital forensics and have been working with both AccessData's FTK and Autopsy to analyze disks for different assignments. I keep hearing that Autopsy findings should not be admitted in ...
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1answer
84 views

Are servers that do not implement time services vulnerable to clock skew attacks?

An article describes clock skew attack possibilities §§: These can be attacked by repeatedly connecting to the hidden service, causing its CPU load, hence temperature, to increase and so ...
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3answers
517 views

Are there commercially available hardware encryption devices over USB? [closed]

I'm designing a system where some combination of hardware and software (lets call it an appliance...) sends asynchronous secure archival to the cloud. By secure, I mean, AES-256 encrypted, with AES ...
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1answer
173 views

Old hardware for encryption and backdoor free

I've read and seen articles on backdoors in the processors or at least the idea of that would render software based encryption worthless. I do know that routers and lots of the newer devices all have ...
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1answer
407 views

TrueCrypt External Multimedia Hard Drive

I have an external multimedia hard drive (1.36TB). I made 4 partitions of 350GB each. Then I shredded the free disc space of all the partitions. Now I want to put Truecrypt on the disk. I can't ...
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1answer
71 views

What is the difference between the different wiping methods used by DBAN?

I was wondering what is the difference between the various wiping methodologies that DBAN offers DBAN Website Once you start the program, there are a few methods available for wiping the disk. 1.- ...
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1answer
88 views

CISSP Cert: can an IT sales pro pursue CISSP? [closed]

I am a sales and product professional who has a total of 9 years experience in IT; related to selling products indirectly or directly. I started my career working as a product manager for hardware ...
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1answer
29 views

Is there an implementation of a trust on software on a host?

What I'm after is a trust that is established between the hardware and the software intended to use that hardware. This may require a certificate "burned in" to a specialized chip. The open SSL may ...
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0answers
44 views

Potential hazards for reusing an X.509 private key for multiple services?

One thing I've been thinking about for a while is using a X.509 private key stored in a hardware security device (think YubiKey et al) on a one-per-machine basis. Theoretically, it should be possible ...
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243 views

how many sha1 hashes per time on current hardware [closed]

How many sha1 hashes per second can current hardware (say a 500$ gpu) compute, when the input is 256 byte long? (or any other length). The question behind is how long (or how costly) is it to mount a ...
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1answer
219 views

Can linux (be made to) detect foreign connections to the ram bus?

I've been made aware on many answers and some comments that an attacker can read memory while a system is still running by attaching some sort of connection directly to the ram bus. Can linux ...
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2answers
300 views

Performing an airport scan on my Mac for available WiFi networks pulls up multiple SSID with different mac address. What's going on?

I performed the following command to search for available WiFi networks in my apartment complex: /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport scan | grep OBC I ...
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3answers
2k views

How can this web page access the USB? [closed]

A friend bought a "smart" headset (working with voice commands). I had to install a software on Windows to be able to configure this headset. After downloading the software from the page, this page ...
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2answers
434 views

Seeking advice on how to build a box to brute force hashes? [closed]

I work in a startup security firm, and I need to build a GPU-based to brute force password/hashes, which can be used to validate password strength and test hashing algorithms. I expect some high ...
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1answer
250 views

Why does Mark Zuckerberg cover his headphone jack with tape?

I can understand covering the camera or microphone but why the audio jack? Mark Zuckerberg have shared a photo to his Facebook account and celebrating the growing user base of Instagram which is ...
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1answer
79 views

Is a reversible microphone kill switch in hardware plausible? [closed]

I'm forking this from this question, to which I gave a partial answer. These folks claim that their hardware includes a physical kill switch for the internal microphone that reversibly interrupts the ...
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3answers
110 views

Why aren't hardware R/W switches used to defend hard drives?

ISTR back in the early days of (build your own) PCs having an old 486 PC with two hard drives, and hacking the "Turbo" switch on the front panel (remember those?) to be a read-protect switch for ...
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3answers
209 views

how to protect my data from malware/spyware that infected my BIOS?

we all know that some countries do their best to spy on their citizens and the citizen of other countries and that countries maybe have specialized spying agencies wither they are known or not, and, ...
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2answers
463 views

How to make data in hard disk unrecoverable on linux [duplicate]

I need to wipe completely the data on my hard disk so it's unrecoverable. I'm actually using Linux, i have seen this command on the web, but I don't know if its secure. shred -zvn 35 /dev/sdb
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1answer
120 views

What is the best way to perform penetration tests for free with and without software? [closed]

Is there any software or hardware that will perform penetration tests without a paid subscription? i.e. Free to use like Kali-linux etc. I would like to learn how to perform penetration tests. If ...
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1answer
297 views

Hardware Implementation of Encryption Algorithm

In the abstract of the AES-GCM RFC, the following passage is prominently included: [AES-GCM] can be efficiently implemented in hardware for speeds of 10 gigabits per second and above... Is the ...
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3answers
2k views

Best practices for firewall hardware

I'm planning to implement a linux based firewall/router with at least 6 x 1Gb NIC's (network with ~300 computers/server with >=8 VLANs) Can anybody recommend hardware best practices (reference to ...
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1answer
124 views

The use of SHA-1 in a cyber forensic

Let's say a hard disk (A) is retrieved from a system to make a clone of it on hard disk (B) and use this clone for a forensic investigation. Is SHA-1 secure enough to make sure that no other ...
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1answer
235 views

Is there a backdoor in the hardware of our smartphones?

I don't know for you but I always felt like Android especially is not safe. Is somebody - the government or other - able to listen to my microphone, or access my hard drive remotely ? I'm wondering ...
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1answer
454 views

Spying on insulated cables (electromagnetic/induction field)

I hope this is the right forum to ask this question. If not, please tell me where to go. From my understanding most cables have an electromagnetic field around them when data passes through them and ...
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1answer
285 views

Wireless Security Pen testing Setup

I had a Asus N82J laptop with a dual boot setup. I boot into Kali and Windows 7. Long story short because of my dual boot with Grub I corrupted my HDD the operating system kept moving blocks of ...
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1answer
957 views

File system history on USB drives

I want to find out who deleted a specific file from a USB disk. The disk is formatted as NTFS. The file was deleted while the disk was plugged into a Windows 7 system. However, while I do have ...
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1answer
58 views

What is a device that scans the network it is connected to called?

Are there any devices (computer, switch, router, etc.) witch integrate licensed software like Nessus or Nexpose in a way that you can just drop them in a network and scan that network remote? If so, ...
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2answers
93 views

How could an hard-token be packaged such that the recipient could trust it?

I purchased a Yubikey NEO, which arrived in a small plastic thing, inside of a padded envelope. An attacker with access in transit would have had basically unlimited ability to manipulate it. Which ...
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1answer
138 views

Can data be tampered with after expert clones a drive?

Introduction 3 computers were sealed and taken from a persons apartment. Investigators invited him to unseal the PCs, they were intact and they started the cloning process, however the hashes were ...
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1answer
174 views

How to prepare a used computer to handle sensitive information

After buying a used computer from a stranger, what steps should be taken to ensure it is safe to use for connecting to a network that handles sensitive information? (I am defining "sensitive" broadly: ...
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1answer
123 views

Importance of password strength with secure element?

Greetings SE security community. Background: I have a number of items like certificates, databases, and encrypted file systems that require private keys. In order to avoid having duplicates of these ...
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1answer
925 views

Is Intel AESNI supported by Xen in VPS/Cloud hosting environments? [closed]

I'm having trouble determining whether when using a hosting company that uses Xen virtualization and Intel processors with AESNI embedded encryption, I would have access to AESNI (i.e., is it an ...
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1answer
15 views

HPET effects on CSPRNG for Linux OS

HPET or High Precision Event Timer is a hardware built-in clock source available in most processors. I would use the computer to generate CSPRNG and do cryptographic operations. My question is: Is ...
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2answers
97 views

Bruteforcing hardware-encrypted SSD

Can you bruteforce a hardware-encrypted SSD drive? I mean recovering the password needed to unlock the drive. Is there any software could do this? Here the focus is the software that could do the job....
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1answer
77 views

Is there any architecture where the data storage is completely separate?

I want the hard disk where my data is stored to be secure from foreign external access. Is there a physical possibility to protect my hard disk or any kind of data storage, like a computer ...
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1answer
37 views

GPG/Bitcoin usb gadget device

My idea is to take a raspberry pi zero (or any embedded linux board) and shove GPG inside it to encrypt/decrypt/sign data with RSA/ECC (for bitcoin) via USB. Like a USB thing that holds your (...
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3answers
145 views

Is it possible for Apple or any other company to create fully encrypted smartphone?

From the latest Apple vs FBI story it's known that Apple is technically capable of changing the boot-loader of the iPhone to provide interface for brute-force finding of 4-digit password. I'm ...
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3answers
109 views

HTTPS client “pairing”

I've been redirected here from SuperUser, I hope the question is appropriate. I need to restrict usage of a certain site to a limited number of customers. More than that, actually: I would like to ...
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1answer
104 views

Are there any potential complications with these secure baseband ideas?

So I have been working on some ideas for securing cell phones from baseband level exploits and I was wondering if there are any potential complications with these solutions such as practicality or ...
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1answer
303 views

What does hardware full disk encryption imply?

I read the wikipedia article and few others, however I still don't have some things clear. The main question would be what does hardware full disk encryption imply for the user, however I have more ...
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1answer
101 views

PCI approved device, does it matter if my POS is PCI compliant if it just passes info to the gateway and does not store the encrypted card data?

If my Hardware device is on the PCI list from here https://www.pcisecuritystandards.org/approved_companies_providers/approved_pin_transaction_security.php Does my POS need to be PCI compliant since ...
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2answers
137 views

Renting a remote server with IPMI: is one vulnerable?

It has been reported in the media and some security conscious mailing lists that some IPMI-enabled servers, implementations and brands suffer serious security issues. When you go to a dedicated ...
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1answer
884 views

Disabling built-in Wi-Fi adapter and protecting Wi-Fi's MAC address on a laptop

I have an XP laptop with Wi-Fi issues - it connects / disconnects intermittently. Anyway, I bought a USB Wi-Fi that works well. My security question are: Is there a way to completely disable the ...
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1answer
80 views

Creating a system to try new software out

I am using Windows 10 and I like it. I would like to experiment without doing harm to my main system that I work with. Experimenting means, downloading software from doubtful sources, executing ...
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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
256 views

How secure is a BIOS/UEFI hard drive password? [duplicate]

I'm buying some new machines and am concerned about security of the data should the machine be physically stolen. It's easy to take out the drive, image it, and read what you want. I could use file ...
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77 views

What can a malicious device on PCIe bus do? [closed]

What threat does a malicious device or a device with malicious firmware on a PCIe bus pose? Can such device access to RAM(only read or write)? All devices on PCIe can have that access(network card, or ...