Encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge.

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3answers
1k views

Excel,word,pdf files got encrypted by ransomware

My MS Office files and pdf files has been encrypted by some ransomware in my pc which was running window XP. I removed the ransomware,formated the OS and put windows 7, but my files are still ...
2
votes
3answers
18k views

Windows 7 Encrypt Folder with Password

First of all, I am not on Windows 7 at the moment but will be in the next few days. I'd like to know if there is a way for me to encrypt a folder to prevent unwanted access, but still provide ...
38
votes
5answers
120k views

How to access a BitLocker-encrypted drive in Linux?

I have a laptop running Windows 7 Ultimate. I have encrypted my drives using BitLocker. Now I have also installed Lubuntu along with Windows. But my encrypted drives are not visible in Linux. How ...
11
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4answers
2k views

How to encrypt an USB stick?

When storing personal data on a USB stick, data needs to be encrypted to ensure privacy. Regrettably, this is far from easy to do without introducing a lot of overhead; ideally, the whole encryption ...
4
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2answers
15k views

How do I encrypt Samsung 840 SSD with Bitlocker?

I need help encrypting my Samsung 840 Evo with Bitlocker. Here is my hardware: Samsung Evo 840 500GB hard drive (firmware EXT0BB6Q) Asus P8z77-v motherboard (BIOS v. 2104) Asus TPM chip - purchased ...
6
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5answers
18k views

How to remove Encrypted flag when copying a file from a HDD to a USB drive?

Environment: Windows 7, but applies to other EFS-compatible Windows versions I have a file that is encrypted using standard Windows EFS encryption. When I copy that file to a USB drive using Total ...
4
votes
2answers
5k views

Encrypting a single file with password and keyfile

I am a fan of TrueCrypt and I guess it's the best encryption tool available. As far as I understand, TrueCrypt created encrypted containers which acts a place to store files. I would like to encrypt ...
5
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1answer
8k views

Is windows remote desktop secure?

Is windows built-in Remote Desktop secure? I mean, does it use any encryption methods? or someone can hijack the data that have been transferred between two system?
43
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1answer
3k views

Short, easy to understand explanation of GPG/PGP for nontechnical people?

Does anyone have a link to a good, but short (1-2 paragraphs) explanation of the benefits of using GPG/PGP signing and encryption for Email focused at non-technical readers? That is, why would someone ...
17
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12answers
2k views

What is the most practical security method for a home wireless network?

Quoting Ars Technica: Proper wireless network (802.11a/b/g/n) security is quite simply out of reach for most organizations. ... Given that WEP (both 64- and 128-bit), WPA1/2 (PSK), and ...
45
votes
3answers
20k views

Does full-disk encryption on SSD drive reduce its lifetime?

I would assume that a full-disk encryption deployment would introduce additional writes each time the computer is booted up and shut down. Given that solid state disks are considered to have a lower ...
7
votes
3answers
33k views

Can I upgrade to Windows 10 with BitLocker Enabled?

I am currently running Windows 8.1 Pro, with BitLocker enabled (the hardware has no TPM, though). I am curious as to whether I will be able to upgrade to Windows 10 when it is rolled out without ...
2
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4answers
2k views

What can I do if I get a movie that is encrypted?

I have a movie and it is not working on KMP. This message appears on the screen: the video is encrypted please download codec How can I handle this?
2
votes
2answers
302 views

undo ntfs file encryption

I have a pc with some encrypted file on it (shown in green) these files were created and encrypted by a user who has since then been removed from windows. I can see the files, but when I click on them ...
54
votes
6answers
31k views

What is better for GPG keys - RSA or DSA?

ssh-keygen defaults to creating RSA keys, but gpg --gen-key prefers DSA/ElGamal. Which one - RSA or DSA - is better for GPG?
47
votes
10answers
46k views

Speed of TrueCrypt whole disk encryption

I'm getting a new development laptop soon, and I'm thinking of using TrueCrypt to encrypt the whole disk. What kind of performance drop can I expect? 10%? 30%? More? Also, assuming the workload has ...
41
votes
18answers
9k views

Can I encrypt data in a way that it can be read normally but can't be copied or edited? [closed]

I want to share my 500 GB hard drive with a friend but I want to encrypt it in a way that all data can be read normally but cannot be copied or edited in any way. Is that possible?
32
votes
7answers
35k views

How to list encrypted files in Windows 7?

I somehow encrypted some files without meaning to, and because of it I can't backup my user folder to Mozy. Is there a way to remove the encryption from all the files or at least find out which one ...
20
votes
6answers
16k views

Wipe RAM on shut down to prevent Cold Boot Attack

My system is encrypted using Full Disk Encryption, i.e. everything except /boot is encrypted using dmcrypt/luks. I am concerned about Cold Boot Attacks, where researchers demonstrated, that content ...
14
votes
2answers
13k views

Using TrueCrypt (software encryption) with an SSD

I use full drive encryption (FDE) w/ TrueCrypt on my laptop. I have a 2nd gen I7 with AES instruction support, so honestly I can't even notice a speed change on the system with it on. My question, ...
20
votes
2answers
15k views

Is zip's encryption really bad?

The standard advice for many years regarding compression and encryption has been that the encryption strength of zip is bad. Is this really the case in this day and age? I read this article about ...
3
votes
6answers
2k views

How good is Word's password protection? [closed]

I have a password protected MS-Word 2007 file that needs to stay private. How good is Word's protection? If it's not very good, can you suggest a better method for keeping the file protected? EDIT: ...
13
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5answers
14k views

Is it possible to encrypt home folder on windows 7?

Ubuntu and MaxOS has an ability to encrypt home folder in case laptop is stolen. Is it possible to do same thing on Windows 7? I need to encrypt home folder so it will be encrypted and decrypted ...
9
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3answers
5k views

Incremental (delta) backup of a encrypted data

I have several files that I need to keep encrypted on my home hard disk. I currently use a TrueCrypt file container, currently around 100MB in size. I need to backup this file daily, and I'm looking ...
4
votes
2answers
1k views

Is it true that strongly-password-protected PDF can be cracked?

I want to protect my PDF with a strong password. But I heard that it can be cracked. Is it true that strongly-password-protected PDF can be cracked? Edit: This is my real scenario. I want to ...
3
votes
3answers
866 views

Encrypt time machine backups

What is the best way to encrypt backups made by Time Machine?
3
votes
1answer
193 views

How can I encrypt my “users” drive?

I am currently running Windows 7. My User folder is mapped to a different drive then the drive that my OS in installed on. I mapped the users folder to the other drive while installing windows. I ...
2
votes
1answer
7k views

Full disk encryption on dual boot system using TrueCrypt

I'm thinking about encrypting my whole harddrive for example using TrueCrypt, which I've used for encrypting file containers for a while. It is possible to encrypt the whole harddisk through the ...
0
votes
1answer
271 views

Is there any way to decrypt .locky files?

I would like to help to my friend. She opened a email, and after that, all files is transform to some encrypt format on she computer. Every image, document extension replaced by .locky. Now, after ...
0
votes
3answers
743 views

Is there a license / royalty free DRM available for protecting and distributing content? [closed]

Is there a license / royalty free DRM available for protecting and distributing video content?
71
votes
8answers
31k views

Is TrueCrypt truly safe?

I have been using TrueCrypt for a long time now. However, someone pointed me to a link that described the problems with the license. IANAL and so it really didn't make much sense to me; however, I ...
12
votes
3answers
19k views

Simple built-in way to encrypt and decrypt a file on a Mac via command-line?

Are there any built in command-line tools that I can encrypt and decrypt a text file (and provide it some sort of password).
36
votes
18answers
30k views

How can clients easily and securely send me passwords? [closed]

I often need to get passwords from clients for FTP, SSH, MySQL, Authorize.net, etc. What's an easy way for them to send me passwords securely? Maybe even without them needing a login/password? ...
21
votes
4answers
16k views

How to do rsync-like encrypted backup?

I want to save a backup of my data on a remote server, but never want the backup server to see the data unencrypted. Editing a single file and backing up should not result in everything being ...
19
votes
3answers
9k views

How to mount an encrypted ext3 filesystem under OS X?

I know how to mount an ext3 filesystem in OS X with MacFUSE and fuse-ext2. But how can I mount an encrypted ext3 volume? I have Mac OS X 10.6 "Snow Leopard" running.
16
votes
4answers
19k views

How does Google Chrome store passwords?

Are they encrypted in disk? How? Are they safe, for example, in the event of someone booting from a Live CD and mounting the hard disk? How is the encryption key generated? Is it different in ...
3
votes
2answers
11k views

Cross-platform file encryption tool [closed]

I would like to know if there is an encryption tool that works on both, Ubuntu and Windows, that can encrypt single or multiple files of any kind (not only e-mails or text). I already have checked ...
3
votes
1answer
14k views

How to create a cross-platform traveler disk with TrueCrypt

I need to create a file-based TrueCrypt volume in a 32GB USB pendrive. If I wanted to access my files in offline computers, I'd need to include the TrueCrypt executable in the pendrive as well. I'd ...
15
votes
1answer
5k views

PGP encrypt single message for multiple recipients

Is it possible to encrypt a message using PGP so that multiple recipients (each with their own public private keypair) can decrypt it? I'd like to email one message which can be decrypted by each ...
7
votes
2answers
2k views

RAR password cracker

Does the RAR file format use a serious encryption (such as AES)? Will it take unfeasibly long to brute force a password? If not, what tools do you suggest that do so automatically?
2
votes
2answers
266 views

Encryption Program for Flash drive data

Is there a program that I can use to encrypt my flash drive? I would like to be able to access data from any computer, however, so the program will probably have to reside on the flash drive.
16
votes
1answer
2k views

Cross platform Hard Disk encryption?

I would like to encrypt my hard drive so that it requires a password to access it. However features like BitLocker in Windows will only work under Windows, and cannot be accessed from another OS such ...
5
votes
2answers
7k views

How to run an encrypted virtual machine?

I wonder what is the best practice for storing the virtual machine encrypted. I tried putting the image it a TrueCrypt volume, but it doesn't work nicely: With the volume unmounted the VirtualBox ...
2
votes
3answers
8k views

How do I prevent a disk from mounting?

I own an Iomega Prestige. The disk series includes a Virtual CD partition that includes a file encryption utility that can only be used on a Windows machine. Every time I mount the external drive to ...
4
votes
1answer
533 views

Encrypting a folder

I'm familiar with bitlocker, having been using it for a while, but I am looking at just encrypting a folder instead. But I just don't understand the options it's giving me. When I right-click a ...
4
votes
1answer
542 views

Why does BitLocker want a recovery key instead of a password?

I have a .vhd image of a BitLocker encrypted drive. When I mount and double click the drive, BitLocker wants me to enter a 48-digit recovery key and doesn't ask for a password. Why is that so and ...
3
votes
1answer
1k views

Windows 10 Update 1511 fails with DiskCryptor whole disk encryption

I am running Windows 10 with DiskCryptor whole disk encryption on the system drive. The latest Windows 10 update fails to install. When I restart the system to install the update, I get the ...
3
votes
3answers
23k views

How can I remove the password protection from a RAR archive? [duplicate]

I have a directory in which there are lots of password protected .RAR files/archives. The passwords of these individual archives are known. I want to remove the password protection from all of them ...
2
votes
2answers
3k views

How can I take advantage of Full Disk Encryption used on SSDs?

Both my OCZ Vertex 2 240GB (with it's SF-1200 series controller) and my Intel SSD 320 support full disk AES encryption. I would like to use BitLocker on this laptop to prevent data theft, but ...
2
votes
3answers
334 views

Bios password protection

I have my system on drive C: and also I have all my important folders on drive D:. I want to lock this drive with a password. Any advice?