The physical components of an IT system.

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4
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2answers
366 views

Are there volatile memory chips which dont retain data after power off?

It was demonstrated that dram modules can retain information up to 10 min after power off in certain conditions. My question - are there memory types which will retain data 10 sec at max even if being ...
1
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1answer
513 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 ...
2
votes
1answer
677 views

Is hardware based disk encryption more secure that software based?

As a spin-off of my question on "Advice on buying an encrypted disk" -- and in an effort to address the question "how is hardware based disk encryption better?" -- I've started a new question. My ...
5
votes
1answer
209 views

What particular devices and processes are available to destroy hard drives, per DoD 5220.22-M?

DoD 5220.22-M specifies the following methods for destruction of hard drives with classified data: Disintegrate Incinerate Pulverize Shred Melt I've seen shredders of the type that might be used ...
49
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4answers
17k 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 ...
13
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1answer
519 views

SCADA / PLC exploit code was released in metasploit. Now what?

Wired reports that there are many security issues with Programmable Logic Controllers (PLCs) and now there is an easy to use tool to scan and detect vulnerabilities. They say it's so easy, the ...
6
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3answers
3k views

Recover the prior contents of RAM from a turned-off PC?

I've heard that if your PC is turned off, then an attacker can recover the RAM from the last session. I find this hard to believe. How could it be done?
2
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1answer
128 views

Are auto-mounting hard drives a security issue?

Why are hard drives mounted by default in Windows OS, while they aren't in Linux OS? Is that a security issue? If your computer was hacked, can unmounted drives be considered clean?
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2answers
1k views

Are TPM chips or the equiavlent required for FIPS 140-2 security level 1 compliance?

A 'TPM chip' is: a secure cryptoprocessor that can store cryptographic keys that protect information FIPS 140-2 requires a cryptographic module, which can be hardware, software, or both that ...
8
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2answers
426 views

How to implement secure device identification in a for-pay wifi router to prevent usage fraud?

After reading this question about how for-pay wifi routers identify specific devices it got me thinking about what a secure alternative might be. I know that certain research has focused on ...
6
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2answers
491 views

WORM media types

Why types of media are Write Once Read Many (WORM) other than CD-R, and DVD-R, say, something in the 100GB range? Are there such devices? What would it take to read them? Are the devices like this ...
11
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3answers
155 views

How serious are security concerns of wireless healthcare devices?

Back in 2008 a wireless defibrillator was shown to be hackable. At this year's Black Hat conference a presenter showed exactly how to hack into a wireless insulin pump. Both of these demonstrated ...
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2answers
334 views

Are there sensors/devices to be used for reading magnetic bits of hard disk

I would like to ask about the availability of any sensor or device that can be used to read magnetic bits inside hard disks? I tried to google that but I did not see any useful thing till now. I think ...
1
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0answers
228 views

What hardware tools are useful to detect cyber crimes? [closed]

As the title says, I would ask about some tools or sensors that are available to be used to detect cyber crimes, specially I am looking for sensors that can be used to read and recover data from ...
8
votes
1answer
242 views

Cons of disabling live CD in bios

It has been suggested that for security reasons it's a good idea to change the boot order to prevent booting from a live CD or USB. But if you lose the passwords to unlock hard drive and bios, and you ...
5
votes
2answers
173 views

How does the predator network prevent outside control by an attacker?

I read several articles saying some of the command and control fleet for the US robotic attack planes may have been infected with a virus. Does this command and control system communicate with the ...
12
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2answers
857 views

Protecting cellphones from USB attacks (a.k.a. Juice Jacking)

We have several smartphone with encrypted data on them (BES, iPhone, Android) and want to prevent an unauthorized person from downloading information from the device via USB. The visual assumption ...
5
votes
5answers
1k views

Is there any way to write-protect a USB or hide its contents from deletion without hardware modifications?

Data on external storage devices are not secure, I understand that. Despite hardware modifications they can still be hacked etc. However files can be hidden (steganography) or encrypted. I'm ...
4
votes
4answers
739 views

Would you go with SSD or Disk Hard Drive?

I haven't really heard anything on how the Soild State Drives are doing out in the real world and I was wondering if they are better than traditional hard drives. Is a SSD more secure or less secure ...
5
votes
2answers
382 views

Dangerous hardware ports?

Using Passware Forensic Toolkit you can extract the bitlocker key using live memory dumping through Firewire (either by using an existing Firewire port, or by inserting an pcmcia/expresscard ...
8
votes
4answers
392 views

Best practices for physically securing a notebook

If the user knows that other people will repeatedly have physical access to her notebook - running Linux - while she is absent, and that there is no way around this, what are best practices for ...
11
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5answers
705 views

Checking if notebook is clean of hardware spyware

Are there any simple steps one can follow to verify if a notebook is clean from hardware spyware? What should be looked for? How should it look? If any visual tutorials with photographs are ...
2
votes
2answers
279 views

Literature about IT security from a hardware standpoint

Can you point me to any book, blog, paper, anything about IT security on the lowest possible level (hardware)? I'm primary interested in the motherboard, CPU & GPU, however, if you know any good ...
73
votes
9answers
11k 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 ...
6
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3answers
1k views

SSD (Flash Memory) security when data is encrypted in place

I'm surveying current techniques on flash memory security. I've learned that the non-in-place update of flash memories prevent us from adapting the same encryption techniques that we used on hard ...
11
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2answers
2k views

Tamper-proof BIOS password & settings storage with Trusted Platform Module?

In the olden days, one could trivially bypass BIOS passwords on most PCs by removing the BIOS battery and clearing the CMOS. My question is: On modern PCs equipped with a Trusted Platform Module ...
11
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6answers
817 views

Best method of retiring hard drives

What are some typical ways you guys retire hard drives? We have a hard drive that won't mount anymore (makes clicking sounds when it tries to mount). The data on it isn't necessarily sensitive (no ...
17
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5answers
526 views

What should I do when classified information stayed on a unauthorized laptop?

Has anyone ever had to deal with an unauthorized laptop accidentally getting Top Secret level data on it? How did you quarantine the system. Were you required to turn in the entire laptop or were you ...
6
votes
2answers
685 views

Do Flash memory (SSD) architecture impacts encryption techniques?

I'm working on encryption techniques on SSD's and my question is: does the erase before write architecture of SSD's has anything to do with the encryption technique? What are the problems I might ...
28
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8answers
6k views

How can I reliably erase all information on a hard drive?

As storage technologies change over time, using different encodings and remappings to deal with sector errors, the best way to permanently erase/wipe/shred data changes also. Methods for flash drives ...
6
votes
3answers
153 views

Is it safe to attach a potentially malicious hard drive to a Solaris machine?

We bring in hard drives from un-trusted sources and would like to ensure that they will not contain any harmful content. What kind of risk is there for Solaris? As in, if Solaris is running, and I ...
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2answers
444 views

Sun ILOM / Out of band management security concerns

I would like to get some outside opinion on this if possible, although I do not know what to ask. Sun ILOM is an Out-of-band management system. I understand it is a separate OS on the box that is ...
13
votes
6answers
1k views

How can the impact of cold boot attacks be minimized?

Short of powering down and maintaining physical security for sufficient time, what are effective strategies for keeping keys from being disclosed by cold-boot attacks, and can anything be done without ...
7
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2answers
4k views

Reversing an entry card - How to find out what type of RFID hardware I need to read the chip?

I have an acccess/entry card chip I want to copy for demonstrational purposes. However I am not sure how I can find out what type of RFID reader I need to get a hold of. Does anyone have a ...
12
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2answers
462 views

HSM track records?

What are the track records of popular Hardware Security Modules (HSMs)? Have any been found vulnerable to hacking via creative use of the API, timing or power-monitoring attacks, etc?
5
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2answers
3k views

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

In another question: How to choose a stream cipher, Thomas' answer mentioned the AES-NI instruction set, which piqued my curiousity. Is there a tool or process available out there to check whether ...
22
votes
4answers
9k 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 ...
8
votes
4answers
3k views

How to disable Firewire in OpenBSD/Linux to prevent attacks through Firewire?

Since Firewire lacks security, allowing a plugged-in device to access host memory, it's a good thing to fully disable it. If we're not using the BIOS to disable the Firewire port then how could we do ...
5
votes
3answers
923 views

vt-d Virtualisation and Trusted Execution Technology

Being a long time VirtualBox user and having recently purchased a new laptop equipped with an intel i7 720QM I discovered that it supported vt-d. In the meantime I've found out that vt-d comes with ...
4
votes
4answers
436 views

What do you do to protect data on a Macbook in the event of theft/loss of the device?

What setup do you recommend to protect data on a MacBook in the event of theft/loss of the device? I'm specifically interested in Macs here, rather than laptops generally, and in concrete ...
6
votes
4answers
939 views

Is it possible to make one processor look like another?

(aka) Is it possible to hack CPUID instruction or BIOS to make it show wrong CPU information? Yesterday, I was having a chat with computer sales guy. He is little close to me. During the conversation ...
8
votes
5answers
577 views

Can a mobile phone battery contain malware?

It has 3 terminals and is presumably a smart battery. I bought it on ebay recently for $2.74 USD and that included postage from China to Australia. It would normally retail for maybe $40 - $50. The ...
8
votes
5answers
1k views

Keyboards immune to signal monitoring?

Reading a couple questions and answers here recently got me to thinking. Wireless keyboards run the inherent risk of exposing their data due to the relatively broad transmission range, and the ease ...
15
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2answers
3k views

Wireless keyboard sniffing risk

I've just acquired a wireless keyboard/mouse combo (Microsoft Wireless Desktop 3000). Only after having plugged it in did it get me thinking. How susceptible are those kind of setups to sniffing? Are ...
8
votes
4answers
617 views

How to track a laptop after theft?

Our company had a break-in this evening and a laptop was stolen. The data on the laptop was not super-sensitive (luckily); however, we would like to be able to track the laptop if at all possible. ...
15
votes
3answers
1k views

How should one properly dispose of a printer or fax which is used for sensitive documents?

If you need to dispose of printers or fax machines that have handled sensitive documents, how should they be handled? Should you permit them to be donated or sold for reuse outside the organization? ...
6
votes
3answers
903 views

Secure hard drive disposal: How to erase confidential information

When it comes to disposing of hardware that may contain PII, confidential, or other sensitive material, how do you determine what needs special handling? What process do you use? I'd like to expand ...
10
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5answers
2k views

What is the benefit with using encrypted RAM Memory?

I sometimes hear that encryption is used for the RAM Memory, but I don't really understand why this is needed. Why is RAM Memory needed to be encrypted? and is this done by the hardware, the ...