The physical components of an IT system.

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6
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1answer
77 views

Anonymity of sneakernet: identifiable information on removable storage

Alice, an anonymous informant, would like to transmit digital documents to Bob while maintaining her anonymity. For whatever reason, she chooses to copy the documents to some kind of physical ...
1
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0answers
27 views

Is malware or screen capture possible with iMac as external display?

If using a foreign iMac as an external display (through the Thunderbolt to Thunderbolt, or Mini DisplayPort to Mini DisplayPort cable, and Command+F2 on the iMac, as per iMac Target Display Mode FAQ), ...
3
votes
1answer
65 views

Disable USB keyboard pluggability on MacBook

I'm concerned about USB devices being physically attached to my MacBook laptop when I am about to unlock my computer or while my computer is unlocked. My threat model involves an attacker who is ...
2
votes
2answers
51 views

What use does a BIOS/EFI password have?

I have become quite a password-obsessed individual. I password-protect my HDDs, my files, and now even the BIOS/EFI on the various systems I own. But I have discovered that if you forget your BIOS ...
3
votes
1answer
59 views

PGP key on smart card: why do I need a “secret key” on disk?

I have a YubiKey NEO on which I have the OpenPGP applet and I have a PGP key installed. I work on 3 different computers and I initialized the card on computer bob. I'm now at computer rob. Someone ...
2
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0answers
25 views

software can be audited, is there an equivalent for hardware?

In software, code auditing can be used as a means to gain trust into a software. Of course closed, proprietary software would complicate this, and require to do reverse engineering. Anyway there seems ...
2
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2answers
126 views

Long term HDD storage solution

I have some HDDs which are encrypted to what I think is a decent standard. I want to lock these away in a remote storage facility, but am a little worried about EMP/Magnetic stuff from wiping the ...
2
votes
0answers
36 views

How are Intel/Amd Microcode Issues Delivered? Is it possible to block them?

After reading this article, I am really curious as to how, exactly processor microcode updates from Intel or AMD are issued. In what way is the data transmitted? Is it possibly to 'firewall' these ...
0
votes
1answer
77 views

Xbox and Playstation copyright protection vs PC

AFAIK, both Xbox one and PS4 use x86 IC very similar to PC. The questions are: 1/ How can they keep those console systems protected from cracker and software privacy? What is the main method to ...
2
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0answers
100 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 ...
4
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0answers
2k views

OPAL Hardware Encryption [closed]

I recently bought a laptop which has OPAL compliant Self encrypting hard drive. I wanted to know how I could use/check the status of the Hardware Encryption features of an OPAL drive (windows, linux ...
4
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1answer
81 views

Realistic: Exploiting a computer on BIOS/ hardware level in less than an hour? (Infinite preparation time)

I wonder how hard it it to infect a laptop or netbook in 60 minutes or less in a way the victim cannot easily clean their machine by wiping hard disk drives. Let's assume the following: The ...
1
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3answers
77 views

What can manufactures of hardware do to prevent attacks on the firmware?

Given the revelations since The Equation Group was discovered. As well as that it is possible to not guarantee removal of a rootkit even with a nuke from high orbit. What properties of a harddrive ...
25
votes
5answers
14k views

How reliable is a write protection switch on a USB flash drive?

I'm currently using a USB flash drive with a live distribution. At times I would plug it into terminals I cannot trust. My threat model here is solely the risk of unauthorized modifications to the ...
2
votes
3answers
127 views

Tamper proof hardware - not resistant

Can you make a TPM (or any piece of hardware) Completely tamper-proof? The “regular” tamper resistant hardware has various physical attacks http://www.milinda-perera.com/pdf/EKKLP12a.pdf I have been ...
5
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2answers
4k views

Tool or Process to check for AES-NI support on processor?

In another question, Thomas' answer mentioned the AES-NI instruction set, which piqued my curiosity. Is there a tool or process available out there to check whether the instruction set is available ...
2
votes
1answer
97 views

Intel SGX and MSRs - what do developers need to know?

Intel SGX is an intriguing new technology that will ship as part of upcoming Intel processors. It is designed to enable running software in a secure enclave. Code running in the enclave will be ...
9
votes
3answers
473 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 ...
1
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0answers
45 views

Ring Oscillator: TRNG vs PUF

Ring oscillators can be used in hardware true random number generators (TRNG), and also in physically unclonable functions (PUFs). The designs seem fairly similar: TRNG based on ring oscillators: ...
1
vote
1answer
64 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 ...
1
vote
1answer
107 views

How to minimize the risk posed by Intel AMT/ME's “ring -3 exploits”?

This question is about how to minimize the risk posed by Intel AMT/ME's ring -3 exploits? I'm looking for advice on common strategies and practices. Here is my current situation. I am parking my ...
9
votes
4answers
170 views

How to trust ICs?

While it is theoretically possible to thoroughly examine the source code of Open Source Software to check for backdoors (neglecting a Ken Thompson hack), and given sufficiently adequate knowledge in ...
10
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3answers
5k views

Free/Libre software to handle TCG OPAL 2.0-compliant Self-Encrypting Drives (SEDs)?

I'm in search of a free/libre software that is able to handle OPAL (2.0)-compliant SEDs (i.e. manage the setting of Pre-Boot Authentification (PBA) environment, encryption keys...). It could be a ...
3
votes
3answers
2k views

Can malware physically damage a hard drive?

I recently responded to an incident of supposed malware infection. The symptoms were simply, "My computer freezes at random times." The response ended with replacement of the physical hard drive and ...
5
votes
1answer
209 views

Keyboards using 2.4GHz with AES

I got a Microsoft Sculpt keyboard, as it seems to be a small improvement over the much loved Ergo 4000. (What I'd give to have an Ergo 4000 with CheryMX Blues...) On various sites, they have this one ...
0
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1answer
60 views

What's the best, most unique (and uneditable) hardware id or key for each computer? [closed]

I'm a C# programmer and I'm looking for the best way to "know" what hardware is running my software. What is the best uneditable and unique "hardware id" in each computer?
25
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6answers
7k views

Can a hard drive be destroyed by drowning?

These are some ways of disposing of hard drives: Special firms, degaussing, hammering, pulling apart. Can this be accomplished more quickly by drowning it? Fill a bucket with water, maybe add some ...
5
votes
1answer
213 views

What can be done to bridge the Air Gap, except autorun?

What can be done to bridge the Air Gap, except autorun? Is there any hardware butterflies that can attack physically isolated Unix/Linux machine in common usb drives, like VSC (Vendor Specific ...
62
votes
7answers
21k views

Is it possible the person sitting across from me at Starbucks was trying to hack my laptop?

I was using my laptop at a Starbucks on a table, and a person was using a laptop on the same table across from me, a couple seats to my side. He flicked some plastic thing across the table towards my ...
1
vote
1answer
44 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 ...
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 ...
0
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3answers
154 views

Hardware encryption for Flash Drives

Could someone tell me the difference between Hardware encryption and Software encryption? (With regards to flash drives, if it makes any difference). From what I understand, software encryption is ...
-1
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1answer
71 views

Recommendations for installing OSSIM

I'm an apprentice in web security and I was assigned with the task of researching about OSSIM. Bear with my infinite ignorance as I take my questions to the stack exchange gurus. What I know so far: ...
5
votes
1answer
205 views

Hardware-based full disk encryption without pre-boot authentication [closed]

I am looking for a possibility to sanitize large amounts of data on regular hard-drives and SSDs. Instead of overwriting the data several times (on regular hard-drives, which could take days and ...
10
votes
4answers
2k views

Possible to prevent Juice Jacking by only connecting USB pins 1 & 4?

According to this accepted answer, there is no phone on the market today that is immune from "Juice Jacking"*. I think an easy way to mitigate this threat is to have a filter that blocks USB pins 2 ...
-1
votes
1answer
91 views

Completely disabling microphone [duplicate]

Maybe not 100% on topic for this site but it seemed like a good place to ask. All laptops are now sold with webcams and microphones and I have use for neither. Taking care of the webcam is easy; ...
1
vote
1answer
47 views

How do chips with write only functionality that store keys work?

I know there are HSMs that let you enter keys but you cannot read them out. Also the secure element in Android lets you do that too. You can enter keys in them and you can perform operations using ...
56
votes
5answers
27k views

How do you destroy an old hard drive?

How do you destroy an old hard drive? To be clear, unlike questions Secure hard drive disposal: How to erase confidential information and How can I reliably erase all information on a hard drive? I do ...
0
votes
1answer
142 views

How to ensure a second hand computer is safe to use [duplicate]

I'm planning to buy a second hand computer (2012 Mac mini, which is no longer available in stores). Because I'm not sure if there is any malware in the computer so I will perform hard format several ...
3
votes
4answers
273 views

Hardware token to authenticate web application

My company is developing a web application, and I was asked to research how to do hardware-based token authentication to login into our web application. Let me repeat: basically there will be a web ...
1
vote
1answer
135 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 ...
0
votes
1answer
108 views

Are there approaches/mechanism to detect hardware backdoors?

Background: A nice Chinese based manufacturer (AllWinner Technology Co.Ltd) produces very useful SoC used boards that often claim to be open source hardware. Question: If need be is there by way of ...
87
votes
8answers
15k views

What would one need to do in order to hijack a satellite?

I realise this borders on sci-fi, but there's been some interesting demonstrations regarding security of various satellites. What would be required to hack a satellite (in general terms, any hack ...
0
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0answers
12 views

How many kbdclasses are normal?

I use a laptop and never had used any external keyboards. Is there a keylogger hiding? What to do?
-1
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1answer
39 views

TPMs available on mobile with application access [closed]

I am looking for a mobile device, preferably a smartphone or a tablet, that contains a TPM (v1.2 or 2.0) and provides application access to it through an API. Does anyone know if any such devices ...
2
votes
3answers
157 views

Are scanners secure?

I have a dead tree document. In order to reduce the risk of being compromised, I would like to digitize and encrypt the document, and then destroy the physical copy. Let's assume my computer itself ...
3
votes
3answers
352 views

Could “system volume information” and $RmMetadata pose information leakage on a nuked HDD?

I recently nuked my HDD(s) via a Windows program (Disk Wipe to be precise: http://www.diskwipe.org/), now everything is fine when I try to retrieve the information on that disk by any program I can ...
1
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1answer
1k views

Does microwaving a hard drive erase it?

Kind of a silly question, but I'm genuinely curious: (in part because I recently saw several questions that refer to "nuking" a hard drive...) what would a microwave DO to an HDD? Would it erase data ...
5
votes
5answers
1k views

Are there any hardware HSMs that can host/run custom applications using the HSM processor(s) within the hardened security boundary?

It seems that the majority of commercially available hardware HSMs are only designed to allow authenticated users to generate, store, and use cryptographic keys with various cryptographic algorithms ...
5
votes
2answers
1k views

How does the encryption of FPGA works?

I know that FPGAS of Altera enables you to encrypt the RTL code while you work with it, what I can't understand is why it is really encrypted since once I have the FPGA, I can take it and with flash ...