The physical components of an IT system.

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879 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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2answers
86 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
131 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
153 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
102 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
5k views

What method of secure erase is sufficient for MacBook Pro SSD Drives? [duplicate]

I would like to securely erase the hard drive of a SSD in a MacBook Pro. The Disk Utility does not give me the option to wipe this drive even when I boot into the System Partition. (it is greyed ...
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1answer
818 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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3answers
87 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
66 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
70 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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1answer
281 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
94 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
134 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
824 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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0answers
57 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 ...
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1answer
103 views

Identifying USB Device Anomalies..? [closed]

I have a laptop with 4 USB ports, and I have an external 4 port splitter that I purchased off amazon. Plugged into that is an external USB audio card. The audio card has a line-in port and an audio ...
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0answers
51 views

Is there hardware which can prove that data was not read? [closed]

I am looking for information on hardware. Is it possible for a hardware device to prove that some data was not read? If so, how does work? I read something about a quantum machine using a polarized ...
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1answer
39 views

Can one trace downloads in storage unit? [closed]

Does My Passport WD keep a history of downloads, transfers etc? In other words can user A detect user B's activity? Or can it just see the content of the storage unit?
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0answers
174 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
126 views

Are there vulnerabilities in display connections? [duplicate]

I have been in the market for a DisplayPort KVM. Most of these products come from small companies I have never heard of and possibly do not trust. I understand the risk of plugging in USB to any ...
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0answers
269 views

Disable HNAP on D-Link router [closed]

I'm concerned that Home Network Administration Protocol (HNAP) is a serious vulnerability that exposes consumer network routers to remote management by malicious entities such as government ...
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2answers
485 views

Transmitting malicious code over audio speakers

In a post that reads like science-fiction, a security researcher claims that malicious code was being passed between computers. A few quotes: ... "badBIOS," as Ruiu dubbed the malware, has the ...
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2answers
294 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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2answers
720 views

Bypassing Trusted Computing

I have not been able to find any information about trusted computing on the Internet. I am reasonably sure that its software manifestation can be bypassed by a Linux live disk, but what about hardware ...
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2answers
115 views

What exactly is endpoint security?

Would someone explain what endpoint security is, exactly? What do companies like McAfee and Symantec sell with their endpoint security suites? I also would like to learn if endpoint security ...
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2answers
329 views

ENCASE Forensic: Detect if someone ran CCleaner or CleanUp software

I have Encase. and I'd like to know where can I find if someone ran CCleaner Or CleanUp software to erase evidence.
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1answer
121 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?
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1answer
448 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 ...
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2answers
86 views

Is there a way to prevent software from accessing hardware IDs?

I think this is related to this question, but I would like to know if there's also a way to prevent "third party" applications from seeing hardware IDs (motherboard, hard disks, and others), or giving ...
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2answers
83 views

Disk Wiping - How can I be sure [duplicate]

I am selling some hard drives but my question is. How can I be sure that the information is gone? Is there a good way to wipe the drives? What are ways I use to attempt to recover the data to ensure ...
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1answer
182 views

Are there any Layer 2 Wifi RFC proposals that isolate each connection from each other? (like a switch)

It's my understanding that everyone on the same Wifi protocol has full access to each other host that it is connected to. Is there any Wifi technology that allows for partitioning and isolation of ...
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2answers
1k views

Encrypted flash drives

I have searched the web for information on secure encrypted USB flash drives. I have found that the most secure encryption is hardware-based like Kingstom DT4000 for example. Why is a simple USB ...
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1answer
26 views

How can a customer authenticate EPOS device and make sure it's not fake?

In the scenario where customers use magnetic stripe payment cards and are paying via EPOS, a merchant can put a fake EPOS on the table that looks identical to real ones, the customer uses his card on ...
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2answers
44 views

Preventing Active System Compromise in Iran

A friend of mine is politically active in Iran and under constant surveillance by the rigorous secret service there. There are frequent break-ins into her apartment. She finds her system often ...
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3answers
251 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 ...
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1answer
112 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 ...
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1answer
229 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 ...
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1answer
208 views

What are the strengths and weaknesses of using a single 'burner' computer vs. many public access computers over a sustained period? [closed]

Assuming that the user is accessing/publishing related sensitive information over this period, and also assuming that they would take additional precautions in both scenarios, such as a Tails live ...
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0answers
2 views

Build host application for Thales payshield 9000 HSM [migrated]

I'm working on creating host application, which talks to Thales HSM over TCP/IP socket. The main use of HSM here is for PIN translation from DUKPT to ZPK for next network in EMV transaction flow. I ...
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3answers
192 views

Most secure way to isolate computer on network

I handle personal client information. Stuff that shouldn't get lost. Because of this, I have had to be careful not to download or install anything that is in any way uncertain. One data stealing virus ...
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0answers
37 views

Is the SanDisk ULLtraDIMM secure after power-down?

I found an interesting product last night called the SanDisk ULLtradDimm SSD (product page), which essentially claims drastic performance gains by plugging an SSD into a standard DDR3 memory channel. ...
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0answers
62 views

Can Bluetooth be man in the middle'd at the L2CAP layer?

Bluetooth HID devices can be man in the middle'd with two bluetooth dongles and this code http://ossmann.com/shmoo-2010/ Is this technique limited to just HID profile bluetooth devices or could this ...
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0answers
27 views

Secure delete with urandom? [duplicate]

What recovery techniques (if any) exist that can recover data from a mechanical HDD if the user has filled the disk with a single run of dd if=/dev/urandom of=/dev/[disk]? Or in other words: is this ...
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1answer
216 views

How far beyond using Shred should I go when deleting files? [duplicate]

Possible Duplicate: How can I reliably erase all information on a hard drive? I'm looking to securely erase my files. Is shred the best option besides ditching the hardware? To what lengths ...
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1answer
60 views

Can Malware Infect Hardware/Firmware

So, my MacBook Pro packed it in over the weekend after I drunkenly vomited all over the keys. I brought it to the Apple store (without the hard drive installed) for an assessment. The results of this ...
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1answer
166 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: ...
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1answer
168 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; ...
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1answer
72 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 ...
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0answers
17 views

How is the current situation of smartphone's factory reset protection?

I came across this news talking about a bypass on the nexus 6P factory reset protection, which made me wonder what is the current security status for the most known phones out there. For example, is ...
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1answer
161 views

Setting up a pentesting lab on my personal laptop [duplicate]

I'm getting myself a laptop for pen-testing using VMware etc. Theoretically speaking, if I were to replace the disk drive with a secondary hard drive, could I successfully set up the laptop to run off ...