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Questions tagged [deletion]

Secure deletion of data.

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0answers
19 views

“Remove files and clean hard drive” on Windows 10 [duplicate]

In Windows 10, when choosing Reset this PC, there's the option to Remove files and clean the drive. How secure is this option? Is it good enough to use before handing off a laptop? Anyone know what ...
0
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3answers
157 views

How to protect company sensitive data from being deleted by a user when data is on their computer?

There more than 300 computers and more than 400 users are available. We face two incidents recently when critical users(who has critical data) leave from company.We have deleted their data when they ...
0
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0answers
46 views

How to delete data on a “keypad mobile” securely before selling it?

Nokia, Model: C1-01, Type: RM-607 How to delete data on a "keypad mobile" securely before selling it?
1
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2answers
144 views

Can you wipe a USB flash drive so securely that it's impossible to recover deleted files through forensic analysis? [duplicate]

Internal SSD can be wiped with TRIM, but USB sticks are external SSD. They're apparently difficult to wipe securely enough to make forensic analysis of the device impossible. This question has been ...
27
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4answers
5k views

Does the destruction of sensitive information limit the choice of hard drives to non-flash based devices?

Working with a non-profit organization,it's common to reuse hard drives that have previously stored highly sensitive information such as medical and financial records. This is primarily driven by cost-...
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1answer
109 views

Is it possible for the government to recover data from a encrypted ssd (veracrypt) that was wiped

Just as the title states I'm wondering if its possible for the government to recover data from a encrypted ssd that was wiped? Thanks in advance!
5
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2answers
189 views

How important is it to delete disk partitions when wiping devices?

The command lsblk returns the following output that lists 4 partitions. sda 8:0 0 931.5G 0 disk ├─sda1 8:1 0 8M 0 part ├─sda2 8:2 0 40G 0 part / ├─sda3 8:3 0 883.8G ...
9
votes
1answer
462 views

Should a secure ATA erase be performed on a non-SSD drive?

When running the command hdparm -I /dev/sda the following output is generated. ATA device, with non-removable media Model Number: WDC WD10JPVX-75JC3T0 Serial ...
0
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1answer
60 views

Do all hard drives support Data Overlay Configuration (DCO) and Host Protected Area (HPA) for data sanitization?

In the absence of physical destruction of hard drives including flash and SSD (since they are often re-used in different parts of the business or re-purposed for donation), the hard drives are ...
1
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1answer
171 views

System Encryption With Veracrypt/Truecrypt- What is the difference between Wipe Mode “None” and 3 pass, 1 pass etc?

First I wanted to make sure we're talking about using a Non-SSD Hard drive. I know SSD drives work differently. Here would be a good reference/guide on system encryption: https://www.howtogeek.com/...
1
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3answers
406 views

Can we wipe an Android phone completely using Encryption and Factory Wipe? (Samsung Galaxy S7 to be exact)

Can we wipe an Android phone completely using Encryption and Factory Wipe? (Samsung Galaxy S7 to be exact) I have a Samsung Galaxy S7. I believe cell phones use flash storage (like SSD) and its not ...
1
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1answer
73 views

Verification After Data Wipe

A lot of data wipe algorithms have the final wiping pass with random characters. They discuss about verification after the wipe. An example of this is from this link: https://www.datanumen.com/blogs/...
4
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1answer
87 views

Howto restore factory default state of an USB pen drive?

The proper way to secure erase a SSD is to issue the SECURITY ERASE UNIT command. Then the SSD controller should send a BLOCK ERASE command to all physical blocks. One caveat: the SSD has to be ...
1
vote
1answer
162 views

Secure way to wipe an entire SSD? [duplicate]

I've read some articles and they appear to suggest the idea of using the dd command to wipe an entire SSD before encrypting it. The drive in question is a Samsung 970 EVO PCIe NVMe V-NAND M.2 2280 ...
0
votes
1answer
80 views

How to securely erase JavaScript parameters after use? [duplicate]

When I pass a password as a parameter to a function, I presume it will end up on a stack or heap. When this function returns I'd expect that my password is still in memory somewhere until it is ...
4
votes
0answers
975 views

What type of data can be recovered from the swap file / page file and thumbs file

This question follows on from a previously posted question on recovery of data from a wiped disk. I have been informed that no files have been found on the computer on the hard disk or in the deleted ...
4
votes
1answer
390 views

What can be recovered? Securely deleted files

I’ve recently got into a little trouble and need advice. It seems I may have inadvertently downloaded a illegal file from a p2p network (along with 100’s of other legal files). I was certainly not ...
1
vote
2answers
338 views

Linux command to wipe files on an SD Card?

Are there any commands, tools or python libraries to securely wipe specific files from an SD or micro SD card (devices that use flash memory)? For example, with a regular magnetic hard drive, you can ...
2
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2answers
65 views

Is corrupting the ciphertext corruption a good erasure?

Normally when you wipe a drive there are still ghost remains of the data even after overwriting the disk multiple times. So I was wondering if you could encrypt the drive and then overwrite the ...
1
vote
2answers
443 views

Secure erase hard drive [duplicate]

What device/method do you usually use to securely erase a hard drive? The situation is, we have hard drives that we want to use somewhere else, and don't want any data to get recovered later, I can ...
0
votes
1answer
72 views

Does zeroing a file on Android work similar to a regular HDD?

On a regular PC hard drive, files aren't actually deleted, so they can still be recovered from the raw data on the drive. So there is the process called zeroing out a file when you delete it so that ...
13
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4answers
4k views

How completely wipe information of overwritten files and folder?

I have only a basic understanding of how files are written in a hard disk. Here I assume the files are overwritten this way. File A is deleted Its address is removed and showed vacant New File B is ...
2
votes
3answers
236 views

Wipe inaccessible hard drive before returning to vendor

My external backup drive broke recently. It just beeps but does not show up in Explorer but in Device Manager. Sadly this drive contains my unencrypted backups. (Not a failure I will repeat). Is ...
0
votes
2answers
209 views

encryption - how to secure files - decrypting exposes them on ssd

Let's say I have an encrypted file. Now I decrypt it but since my computer only has ssd, i decrypt it on the ssd drive. Say, I make changes or I finish using the decrypted file so I encrypt it again. ...
10
votes
1answer
570 views

GDPR Deletion Request Tracking Paradox - Suppression Lists

I work at a large-ish tech company with hundreds of websites and some large web applications with a very large number of users. I am planning to propose that we have a central system to track ...
88
votes
1answer
15k views

Wiping an SSD with Parted Magic seemed too quick

I'm selling a computer with an SSD (it's a Lenovo ThinkPad Carbon X1). I wiped the drive using Parted Magic. I used the ATA method. I'm not sure what that is but it was the only setting available. It ...
1
vote
1answer
81 views

How is cryptoshredding a “sole pragmatic option for data disposal in the cloud”?

I'm studying for the CCSP exam and I think I'm missing something here... In reviewing data destruction/disposal methods, I'm aware that an on-premise IT environment has several options: Physical ...
2
votes
1answer
53 views

Erasing files and passes - how to understand them? [duplicate]

A few months ago, I downloaded Edenwaith Permanent Eraser from the edenwaith website and set it to DoE (3x) in the preferences. I am using Mac Mini 2011, MacOS Sierra, and use it to delete files and ...
1
vote
3answers
140 views

Wipe data from many storage devices

This software for wipe devices of storage: Active@Kill Disk - Hard Drive Eraser. Eraser. Shredit for Windows. Disk Wipe. Darik's Boot and Nuke (DBAN). I wonder if this software is able to use for ...
3
votes
1answer
1k views

Router - is there anything to “wipe” before selling

It's a Linksys WRT1900AC. Beyond resetting the firmware is there anything else I should consider as it's been used in a business. I'm thinking about personally identifiable information from a legal ...
3
votes
2answers
204 views

Wiping a server with sensitive data

ORIGINAL QUESTION: We have servers which we want to wipe and sell due to an environmentally friendly scheme, recycling, reducing carbon footprint etc. The servers have a raid configuration. After ...
2
votes
1answer
93 views

Wiping data properly in LUKS encrypted drive

Is it enough just to remove the header of LUKS device to wiping (unrecognizable) the data completely? Or it is recoverable (I don't want to recover though)? I need some safeguard to wiping my ...
1
vote
1answer
115 views

Does editing a file and saving it permanently overwrite it?

Does editing a file and saving it permanently overwrite it? Is this a foolproof method of data destruction? I have a file that I need to fully erase, is this the way? I am running Linux and the file ...
4
votes
2answers
317 views

Is it secure to wipe a file in a Virtualbox disk if the vbox disk file is on an ssd?

Preface I searched for an answer to my question and found related questions which do not cover my question completely. Like: On SSD deleting: Can Widped SSD Data be recovered How to securely delete ...
11
votes
1answer
480 views

If I sell my printer, can the last printed pages be recovered? And how can I wipe it?

I have a Brother 5470-DW Printer. I want to sell it but wanted to make sure all the last prints can't be recovered. If I sold my printer could the last pages printed be recovered? How can I wipe all ...
3
votes
1answer
349 views

Is SSD encryption useless on data already present?

The reason I ask this question, is that presumably when contents on an SSD are encrypted, the unencrypted data is overwritten with its encrypted version. This study tells us that overwritten data can ...
2
votes
1answer
623 views

How to secure erase files and folders? [duplicate]

How to securely erase/delete files or folders in different file systems (NTFS, ext3, ext4) ? Need to delete files so it will be impossible to recover that files and no traces of metadata and traces in ...
1
vote
0answers
92 views

Will overwriting a file before deleting guarantee the destruction of the original file's data [duplicate]

Say I have a file I want to erase. Simply deleting it is not enough. It still resides in the recycle bin. Emptying the recycle bin does little as well, the actual data is not deleted just the pointer, ...
2
votes
1answer
115 views

What happens to a VM when you delete it? [closed]

I was curious what happens when you select "delete all files" option in Virtualbox? Are files saved on the installed OS in Virtualbox recoverable on your hard drive? Is there a secure way I can delete ...
2
votes
1answer
4k views

How can I delete Telegram messages from their server? [closed]

Since I heard that Telegram stores all the chats including messages, pictures, audio & video material on their servers (cloud) I would like to know how can I delete all of my chats from my phone ...
0
votes
2answers
135 views

Use explicit_bzero() to zero entire memory

Functions like bzero(), explicit_bzero() and ZeroMemory are designed to delete sensitive data from RAM (Like keys). Can I use explicit_bzero() to delete entire RAM (e.g. 2 GB RAM)? Is this a feasible ...
1
vote
1answer
130 views

Erase RAM while device is on [closed]

Is there anyway to get rid of the data in RAM without powering off the system? or better to say how we can reduce the chance of getting meaning full information from the volatile memory while the ...
-1
votes
1answer
65 views

Securely erase leftovers of files from the bin in OSX

I have made a mistake and deleted a sensitive file by placing it on the bin, and then empty the bin in OSX 10.12 (Sierra). I have heard this is not a secure way to delete sensitive files. Is there a ...
1
vote
1answer
100 views

How to completely remove all traces of a file on Linux? (Overriding everything if needed)

How can I delete a file and completely remove it from the system FOREVER. I does have in mind that it's needed to override it. But how can I do that?
3
votes
1answer
165 views

Is disk wiping required for full disk encryption if that disk was encrypted before?

It is generally recommended to safely erase the content of a disk before encrypting it, to avoid some forensic attacks. But is it necessary when that disk was encrypted before ? Wouldn't the data ...
0
votes
2answers
120 views

wipe encrypted disk by nulling the first few bytes?

If I encrypt a whole partition with AES, is it secure to just overwrite the first few bytes of the partition in order to make it completly unreadable even if an attacker knows the passphrase to access ...
0
votes
0answers
628 views

BIOS rootkit : Computrace and Wiping SSD HPA on Linux + protect it with custom encryption

My primary goal is to close firmware backoors. First, I want to know if my plan might work or not, and if it is a good idea, how to implement it: I erased preinstalled Windows and installed Linux ...
0
votes
1answer
104 views

Are there any real life scenarios where usage of the Gutmann method is appropriate? [duplicate]

Peter Gutmann himself wrote the following: If you're using a drive which uses encoding technology X, you only need to perform the passes specific to X, and you never need to perform all 35 ...
2
votes
2answers
373 views

Is using video editing software to fill SSD with junk video secure?

I'm about to sell an old 128GB external SSD, and I've read various guides saying it's difficult to be sure that data is erased when using traditional zero-fills etc. I'm on Mac OSx, and I got the ...
19
votes
1answer
2k views

Privacy data concern: Facebook account appearing with a search for phone number, despite it never being added - what should I do? [closed]

Something that's concerned me recently is "doxing" or the searching for and posting of personal information. Recently I carried out essentially an audit of my personal security online and discovered a ...