For questions generally relating to recovery of "plain" data from digital storage, when that storage has been damaged or the credentials securing it are lost.

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2answers
38 views

Securely remove data from hard drive without killing recovery partition

Information Security vs Business question here: IT department asks me for a way to securely remove data from a hard drive because they want to sell old hardware. I suggest DBAN as a secure wipe ...
0
votes
0answers
25 views

Accessible data when hard-drive is encrypted

I recently acquired a new computer so I decided to try a few things, such as disk-encryption (fir the record, I installed Ubuntu 15.10, made only one partition, wiping everything that was here). I ...
2
votes
2answers
58 views

Deleted files and their traces

Lets say we delete various files , from hard disk A, with shift - delete , windows 8 . Then we copy new files to the same hard disk A. Then those new files we just copied there to hard disk A, we ...
2
votes
1answer
70 views

Secure data by encrypting and rewriting on same file

I'm working on a project to Encrypt files using AES encryption with a key generated from SHA-256 from a keyword. My idea to claim this was to first : read all bytes from a file second : encrypt ...
-1
votes
2answers
43 views

How likely is it to find valuable information in the slack space of a workstation?

I just read about slack space which is the unused space at the end of a sector. This space is unused in some sectors when either the file itself is smaller then the sector or the sector contains the ...
0
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2answers
61 views

Dealing with password vault recovery after a catastrophic failure as a home user

I had a dinner with some friends today, and I mentioned that I use 1Password combined with Dropbox to manage my password. One of them then remarked something which I actually hadn't considered: ...
10
votes
2answers
230 views

Could data be recovered from cut magnetic stripe card?

I know all systems accepting magnetic stripe cards (card readers, access systems, etc) would reject a cut one. But could and expert still get the data that was on it? For the record, I mean "cut in ...
3
votes
3answers
95 views

how many time to take fully destroy a deleted video from SD card?

I have deleted a video from my SD card six months ago. How much times does it take to fully destroy this video file on the SD card? If I wanted to recover this video, is it possible to recover?
1
vote
1answer
116 views

Is it possible to recover a Diskcryptor volume password?

Must admit to being dumb: I have encrypted one partition from my external hard drive with the AES-Twofish-Serpent algorithm and used a key file with a password. My PC ran into a problem and now the ...
0
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0answers
32 views

What is the legislation (if any) behind self-employment Data Recovery/Destruction?

I am a self-employed technical advisor of about 2 years, and have run into a dilemma: Legislation for Data Destruction and Recovery. Throughout my career, I've been asked many questions regarding ...
7
votes
4answers
1k views

Securely erase personal data from android phone before selling

I have just sold online my old Nexus 5 (Android Lolipop) and need to post it tomorrow morning. I would like to make sure the new owner can't access my files. What should I do?
47
votes
6answers
8k views

Can RAM retain data after removal?

Is it possible for RAM to retain any data after power is removed? I don't mean within a few minutes such as cold boot Attacks but rather 24 hours plus. Working with classified systems the policy ...
6
votes
0answers
190 views

Do I need to use the cipher command with a newer SSD to erase files?

I've used Eraser in the past, and recently became aware of the cipher command in Windows 8. Specifically, with the /w flag: /w removes data from portions of the volume it can access and have not ...
3
votes
4answers
899 views

How to detect self destructing emails? How to prevent from self destruction?

Recently I came across a gmail extension for Chrome browsers which claims to send self destructive emails. I tested by sending self destructive emails to my email account and it works fine Now my ...
19
votes
4answers
3k views

Why is writing zeros (or random data) over a hard drive used when writing all ones is more beneficial? [duplicate]

As far as I know, in order to securely delete the hard drive's contents, one should fill it with zeroes or, for added security and harder recoverability, random data first and then all zeroes. In ...
0
votes
2answers
122 views

Decrypting old data from PHP extension

I recently came across an old website of mine that I had used the PageProtectionPlus MediaWiki extension to encrypt parts of. I'm curious to see what I wrote, but the extension is no longer supported ...
5
votes
2answers
1k views

How to securely encrypt data with a public-private key encryption scheme, but also allow decryption if the private key is lost?

This question is a followup question to Storing plaintext passwords for cameras - Security concerns?. In that question, I posed what I thought was a simple question, which actually turned out to ...
-1
votes
3answers
198 views

Overwriting only Free Space with rubbish data to prevent data recovery?

I am aware of tools which write zeros or other useless data to fill up your harddrive, however so far all of the tools I have come across must fill up the entire harddrrive. My understanding of the ...
0
votes
1answer
349 views

Does microwaving a CD erase it?

I just read the question: Does microwaving a hard drive erase it? and now I am curious too... does microwaving a CD (or for that matter, DVD, or blu-ray) erase it? My initial thought is that some ...
0
votes
4answers
145 views

How difficult is it to protect your storage from data recovery

Many of my customers refuse to sell or recycle their old hard drives or mobile phones because everybody now-days talks about how popular data recovery program's are. Isn't it enough to use a software ...
3
votes
2answers
153 views

Data Abstraction Layers in Forensic Imaging

I am a bit confused from various sources about the abstraction level and layers that a file resides in forensic imaging. I have found two slightly different explanations: The first one includes a) ...
0
votes
1answer
106 views

Storing data permanently vs temporarily

My lecturer said that since hard disk space is so cheap these days, most organisations do not delete the data on the disk. Rather, they only logically delete it (remove the link to the data). If this ...
9
votes
4answers
4k views

How does forensic software detect deleted files

How does forensic software detect deleted files? When a file is deleted, the pointer from MFT in NTFS system is deleted and the file is no longer accessible from the OS. If our disk is fragmented how ...
1
vote
1answer
83 views

Data recovery from file collections [closed]

I am presently working as a summer intern. My first objective is, given a collection of files, recover and identify the file types present in it. To download sample pseudo-forensics data I have been ...
6
votes
3answers
3k views

Is filling up the empty space in a disk with any data enough measure against file recovery

If I have an important data in a disk (flash, SSD or HDD) and I deleted them, I know it is easy to recover these deleted data (even by using free software like recuva. Now if I fill this disk with any ...
3
votes
1answer
1k views

How can I recover a GPG private key from a PC which has died? [closed]

Long story short - PC with kleopatra processor died, and I only have a backup of my public key. I've gone into the HDD and tried to re-jig kleopatra in the hope it would remember everything for me on ...
2
votes
3answers
145 views

Creating a custom restore disk to prevent data mining?

I work in commercial telecoms and one part of our business is the leasing of computer equipment to call centers. If the customer for whatever reason gives us the equipment back (non-payment, out of ...
0
votes
2answers
90 views

Secure system generated symmetric keys

I'm developing a system that manages and shares user passwords (which are encrypted using user generated symmetric keys). But of course a big concern is the user losing their symmetric key and the ...
1
vote
3answers
447 views

Environmentally friendly ways to destroy hard drives

The best method to prevent others from reading the data on hard drives is to destroy the drives physically: a sledgehammer is a cheap and effective tool to prevent the data from being read again. ...
7
votes
1answer
199 views

What's the best duration for storing e-mail? [closed]

We’ve all become so accustomed to using email in our daily personal and working lives that we really don’t give a whole lot of thought to it. It’s the fastest way to communicate with others in the ...
5
votes
6answers
7k views

Overwriting hard drive to securely delete a file?

I am working on a computer that I am not allowed to install new software on. It does not have secure delete software installed. Suppose I have a file (or files) that are sensitive that I'd like to ...
2
votes
2answers
403 views

Is there any way of recover a locked drive using TPM?

Just reading I learned about the TPM technology and how it works. However, it make me wonder... if the motherboard crashes, is the data lost forever? Because you can't use the drive in other system ...
0
votes
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 ...
3
votes
3answers
8k views

Can files deleted from a true crypt volume be recovered?

I have a True Crypt volume that's set as a file. When I mount the volume and delete a file within the container, windows asks if I'd like to send the file to the recycle bin. While the volume is ...
3
votes
1answer
12k views

Is there any way to crack bitlocker drive?

We have disk drive that encrypt with BitLocker . Is there any way to hack or crack and recover our data? my key is lost. AND we haven't any backup from those data!
8
votes
2answers
2k views

Is Data Remanence a Myth? [duplicate]

Possible Duplicate: Why is writing zeros (or random data) over a hard drive multiple times better than just doing it once? Multiple overwrites have often been discussed as a secure way of ...
7
votes
1answer
1k views

How isolated are files on a VirtualBox virtual machine from the host filesystem?

When transferring ownership of a computer from one party to another, it's advisable to perform steps to clean out personal data from the hard drive. Depending on needs, the type of data, and/or level ...
9
votes
1answer
848 views

Reversible, recoverable user data encryption scheme

From this earlier question, I have a general need to obfuscate a set of third-party credentials stored in a user account, which are then used in an internal Winforms software client. The scheme from ...
1
vote
1answer
706 views

Windows 7 EFS - connot decrypt

I have some files on my laptop that were accidentally encrypted, I think by Visual Studio. I didn't even know that was possible. Anyway, the way I discovered they were encrypted was that I changed ...
1
vote
1answer
110 views

GPG encryption date or GPG version recoverable?

Is there a way to determine the date of encryption or the GPG version of a GPG-encrypted file (with symmetric encryption)? I lost the password but some rough information about when the file was ...
1
vote
2answers
1k views

Wipe free space with zeros, how secure? [duplicate]

Possible Duplicate: How can I reliably erase all information on a hard drive? If I wipe free space with zeros instead of random data to finish fast will that write old file to be ...
2
votes
2answers
1k views

Use truecrypt to make data unrecoverable

If I format all my drivers c,d,e,f and then make a truecrypt volumes equal to drive size then delete it 'the voulme' will that make the old data unrecoverable ex. d:= 30g i use truecrypt to make 30g ...
1
vote
1answer
151 views

Data recovery for pulling out all data, and software to find types of content [closed]

I am looking to do data recovery on disk drives and memory cards. For this I want a device or type of software which allows me to pull out the following data: Allocated space Unallocated space Slack ...