password-protection interview questions
Top password-protection frequently asked interview questions
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 sell my ebooks on the web.
Recently there are many sites that shares ebooks. I don't want it to happen so I need a password-protected scheme applied to my ebooks. I hope buyers cannot remove and modify the contents; the integrity must be protected.
Source: (StackOverflow)
Suppose a user uses a secure password at site A and a different but similar secure password at site B. Maybe something like mySecure12#PasswordA on site A and mySecure12#PasswordB on site B (feel free to use a different definition of "similarity" if it makes sense).
Suppose then that the password for site A is somehow compromised...maybe a malicious employee of site A or a security leak. Does this mean that site B's password has effectively been compromised as well, or is there no such thing as "password similarity" in this context? Does it make any difference whether the compromise on site A was a plain-text leak or a hashed version?
Source: (StackOverflow)
I'm using the Unix tar command as follows to tar up a directory and its files:
tar cvzf fileToTar.tgz directoryToTar
Is there a way to password protect the .tgz file? I've created password-protected ZIP files on Windows so I would assume Unix has the same capability. Any ideas?
Source: (StackOverflow)
Microsoft Security Essentials detected Google Chrome as a Password Stealer:
PWS:Win32/Zbot
Category: Password Stealer
Description: This program is dangerous and captures user passwords.
Recommended action: Remove this software immediately.
Security Essentials detected programs that may compromise your privacy or damage your computer. You can still access the files that these programs use without removing them (not recommended). To access these files, select the Allow action and click Apply actions. If this option is not available, log on as administrator or ask the security administrator for help.
file:%LocalAppData%\Google\Chrome\Temp\source\Chrome-bin\chrome.exe
I can't tell if it's a particular extension that I tried to synch from my other machine, the chrome application itself, or just a false positive. I've run a full scan on the another machine that Chrome is synched with and nothing was detected.
Should I be worried? What can I do to get rid of it?
Source: (StackOverflow)
I have two machines on a local network (Ubuntu 11.04). I created an NFS server on machine A. The other machine B receives its IP through DHCP.
I want to know if IP is the only way to allow or deny hosts from accessing the NFS share. Is there some way I can restrict access to the NFS share based on a password?
Source: (StackOverflow)
I have two young kids who have gotten rather computer saavy. They love playing their games, especially when it allows them to print out awards or coloring pages.
Unfortunately this means that in the time it takes to refresh my cup of coffee, they can easily drop a 10 page document into the printer queue, and my printer ink runs out rather fast.
How would I setup some kind of password protection on the printing, so that I would have to do some kind of final approval before they get their printouts?
Source: (StackOverflow)
I normally use a tool like WinZip, 7Zip, or WinRAR to create zip files but I'm on a Windows 7 system that doesn't have these tools installed (and I can't install new apps).
Outside of 3rd party tools like the above, can I create (or modify) a zip file in Windows 7 and request that it be password protected? (the files would contain sensitive information that I plan to transmit to another PC)*
e.g. the process I'm familiar with on Windows is to select the files, right click and choose: "Send to..." > "Compressed (zipped) folder" - but there doesn't seem to be any additional options.
* Note: I'm aware this isn't 100% secure, locked down mega encryption - just looking for "reasonable effort" to secure the data in transit.
Source: (StackOverflow)
Apps like Roboform that allows generate random password. Maybe there are hacker programs that are smart and know how password generators work which lets them crack passwords easier? Maybe they know some pattern?
Also what do you think about LastPass? You passwords are stored in the cloud somewhere. Who knows what can happen there... Administrators may get curious or hackers can hack cloud.
Source: (StackOverflow)
I've searched a round quite a bit in the past and present for either a builtin feature or program for this, but had no luck. I want to password protect a folder, but do not wish to encrypt it.
The security of the contents of the folder is not important, the password would just act as a deterrent to somebody attempting to access the contents of the folder from my computer. Think of it like a password lock on a computer, if you were to remove the harddrive you could easily take all the files the user had, but the password is still a deterrent so that not everyone passing by can just hop on.
Two main reasons to not use encryption here are:
- Decreased performance for opening files
- Encryption prevents the contents from being indexed/searchable
Is anybody aware of a solution?
Source: (StackOverflow)
How do I store multiple files in an archive (like .zip/.rar) with password-protection on Mac OSX?
It has to be a portable file to keep on Dropbox or a USB-key.
Also, the password-protection must be a standard, so it can be passed between a Mac and Windows-PC.
The application should be free or downloadable via Mac App Store.
Source: (StackOverflow)
Just wanted to know, is it possible to password protect any confidential folder without any third party software?
I am using Windows 7 x86 Professional Edition. But the folder i need to protect could be accessed in XP/Vista/7
Source: (StackOverflow)
In Windows 8, in the scenario where there is a single user that has a Microsoft Account (i.e., they have created their account via a Microsoft email address) how does one disable the password prompt when unlocking the screen?
The Windows 7 analogy would be to disable the screensaver password prompt.
I can do this on a "local" account (one not backed by Microsoft) but the setting seems to have no effect on connected accounts.
To replicate:
- create an account using whatever@hotmail.com or whatever@live.com
- Lock the screen with WinKey+L
- Attempt to unlock, by clicking the mouse, without entering a password.
Source: (StackOverflow)
I am a writer and want to sell my ebooks on the web. But recently there are many bad buyers who remove the protection, modify the contents, and share them on the web.
My related question: Is it true that strongly-password-protected PDF can be cracked?
I want something that can prevent someone from removing the security protection (permission to print, edit, making comments, etc) in my ebooks. I also want to assign a unique identifier for each buyer so I can trace who shares the book (when I get the copy on the web).
How to accomplish my scenario with minimal hassle?
My ebooks are sold in PDF format.
Source: (StackOverflow)
I have about 180 passwords for different websites and web services. They are all stored in one single password protected Excel document. As the list gets longer I am more and more concerned about its security.
Just how secure, or should I say insecure, is a password protected Excel document? What's the best practice for storing this many passwords in a secure and easy manageable way?
I find the Excel method to be easy enough, but I am concerned about the security aspect.
Source: (StackOverflow)