Security in terms of "computer security", such as protection of information, protection from theft or data destruction.

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Are the Windows 8 Password, Pin, Picture Password options all equally secure? [closed]

Windows 8 allows me to log in with my Microsoft Account username and password. But Windows 8 also lets me setup a 4 digit pin. It also lets me setup a three gesture touch password. These are ...
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3answers
1k views

How do I know whether my Debian is being hacked/infected?

My laptop seems to be acting rather weird - saying that another person is logged in when I try to shut it down (or maybe it likes being turned on). So how do I know whether my Debian laptop is being ...
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1answer
198 views

Can Windows based computers ever be secured? [closed]

In light on this excellent article series by Ars regarding the black security work by HBGary - HBGary claims to have coded several rootkits and had access to 0-day exploits that could compromise a ...
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2answers
10k views

how to grant access to a folder using cacls

I have revoked a permission for a folder test using cacls. cacls d:/test /D adsd14 Now I trying to reassign permission to this folder using the same command. cacls d:/test /E /G adsd14:F ...
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2answers
661 views

How does Antimalware Doctor infect computers?

I didn't do anything stupid like run random .exe or visit questionable websites, but as I was just Googling I get infected by Antimalware Doctor. At that point I just shutdown my computer and ...
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2answers
1k views

Linux File Permissions & Access Control Query

Let's say I am user bob in group users. There's this file: -rw----r-- 1 root users 4 May 8 22:34 testfile First question: Why can't bob read the file as it's readable by others? Is it simply ...
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2answers
3k views

Allow one Windows user to only execute 2 applications

I'm using Windows 8 Pro. I'm trying to create a very limited Windows account. The account will only have: Remote Desktop Access Shell replaced by our own in-house application Access to the one FTP ...
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4answers
4k views

Securing Windows 8 against changing utilman.exe to avoid login bypass?

Is there a way to secure Windows 8 against this login bypass? Basically an administrator can rename the utilman.exe (for example, to utilman.exe.bak) then copy cmd.exe to be utilman.exe, then at the ...
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2answers
277 views

Program to wipe HD? [duplicate]

Possible Duplicate: Securely format a hard drive How to wipe a USB hard drive What is a freeware app i can use to wipe a HD? I have two 1) My external which is <1yr old and is ...
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2answers
2k views

Is securing Wifi with MAC Filter enough?

I have a MAC filter in place for everything that connects to my router. I also have WPA2 on the wireless. When a friend comes around, I tell them the password (I trust them), they type it into their ...
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4answers
415 views

If a “forgot your password?” page emails your old password, is that definitive proof that they have stored it in plain text?

When a site emails your old password, as opposed to requiring you to reset it on the site, I'm wondering what that implies about their security measures. Does this mean that they store the password ...
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6answers
5k views

Port scan revealed port 1111 open. What is it?

I am new to systems administration and have a new server running a website with http (at port 80), https (at port 443) and ssh (at port 22). I did an nmap port scan using my personal laptop and other ...
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4answers
3k views

If I use an SSH tunnel to get around a firewall, what does the sysadmin see?

I use an SSH tunnel for the port my browser uses to access the internet. The result is I get around the firewall my network uses, which prevents me from using many sites I want to use (facebook, ...
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2answers
2k views

What does Trusteer Rapport do?

Recently, both of my banks have been trying to foist Trusteer Rapport on me when accessing their online banking services. I haven't downloaded it because I can't figure out what it actually does, and ...
7
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2answers
18k views

Lock your computer after 5 minutes of inactivity

I know you can automatically Sleep and Hibernate your computer with a timer. But these affect running programs and stop downloads ... so I was wondering if there is a way to automatically Lock your ...
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4answers
569 views

How to determine the entropy of a password

How can I tell if a password has good enough entropy to prevent brute-forcing on a realistic timescale? For example, if I have the following password, how can I determine if it is strong enough to ...
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3answers
1k views

Block domain, website, without waiting for localhost (hosts)

There is a related question here. I can use Administrator, install extra software, whatever needs to be done. My problem is: I can't block websites entirely. Like in AdBlock Plus, you add a rule ...
6
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1answer
4k views

Using a decoy operating system, with another OS hidden by TrueCrypt?

TrueCrypt provides an option to use a hidden operating system. This works by having a decoy operating system residing on partition 1, and using partition 2 as (encrypted) data storage for the decoy ...
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6answers
580 views

Run user code safely

I have to mark C code and part of that involves running and timing their submissions. The problem is that their code then runs as me and they can in principle do whatever they like using my ...
5
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6answers
999 views

Secure setup of home wireless network

How to configure home wireless network to ensure that it is sufficiently secured and at the same time its usability is not restricted. EDIT Just to clarify by "usability is not restricted" I meant ...
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2answers
1k views

How can I prevent file copy in my usb stick?

I want to prevent other users of copying my files from my usb stick. Is there any method to do that?
5
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2answers
832 views

I want to make Macintosh Security Settings Location-Aware and Automatic

I have a Macbook Pro that I take from home to work to coffee shops to hotels. When I am at home, I want it to not require a password except after 4 hours of inactivity. When I am traveling, I want it ...
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3answers
3k views

Can 'Switch User' in Windows 7 work with Active Directory?

In Windows 7 you can 'Switch User' to anyone who's been configured locally on the machine. Can this be extended to allow someone to switch to a user defined in Active Directory (the same directory ...
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3answers
534 views

How Wifis and wifi security work?

I see tons of videos dealing with WEP cracking, but actaully none of them teach about how Wifis work. They are just a bunch of commands thrown at the screen. Where can I learn about the inner ...
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4answers
9k views

Lock Mac after N mins of inactivity?

Is there a mac app that can lock the screen after N minutes of inactivity? Preferably N mins after the screensaver has kicked-in. Locking when the screensaver comes on is annoying - I want my ...
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2answers
1k views

Is it possible/good practice to use same private key for two servers for passwordless login from the same workstation/localserver?

I have two websites. One website is a clone of the other website. When I checked the sshd_config file in both the sites they are exactly similar, except one uses authorized_keys as the identification ...
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1answer
1k views

Easy way to transfer a private key to another machine?

ssh-copy-id makes it easy to transfer a public key to a remote machine. Is there any equivalent tool for moving a private key? update Don't do this! (see answer)
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2answers
461 views

Are WiFi transmissions over an open network encrypted?

By "open" I mean the router does not require a password to connect.
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6answers
789 views

Standalone firewall + antivirus or combined security tools?

For years I'm using some antivirus software and different firewall. Now every antiviruses have got some firewall features and there are complete "internet security" complexes... and every firewall get ...
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2answers
1k views

How to set the default file permissions on ALL newly created files in linux

My question is similar to this: http://stackoverflow.com/questions/228534/linux-default-file-permission but there is no scp/ftp client involved and that question looks abandoned. Simply put: I want ...
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1answer
2k views

Run unsigned Java applets

Basiclly the same question as Allowing unsigned Java applications on all sites, but for Java 8, where I get the pleasure of seeing this screen: Unsurprisingly, this breaks things for me. Is there ...
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4answers
395 views

How to hide a code from myself until a specified time?

Essentially, what I need is some way to generate and store a random string (20 characters long, say) for some period of time, such that there is no way for me to recover the string until the end of ...
3
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1answer
69 views

Password management at an organization [closed]

In my company we have a largish number of secure logins, currently all stored in a single KeePass database which some of us share the keys to. We'd like to have a more fine-grained, identity-based ...
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3answers
140 views

How to store passwords [closed]

I want to know what the best way is to store secret information (like passwords, passcodes, and ssh keys). Should it be stored on the computer or written down for a home/office use? What is the best ...
3
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2answers
609 views

Copy-proof flash drive

I'm looking for a solution that make it possible to make a flash drive which protects the data from being copied so that the data is data could be "played" only The main aim for the flash drive is to ...
3
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2answers
760 views

My Mac trying to connect to a possible intruder's machine, that is not in the network anymore

I just asked a question I think someone else has access to my wireless network. What next?. I have changed wireless security to WPA2, changed the password, disabled file sharing etc as =suggested in ...
3
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1answer
4k views

Can I stop windows from “Blocking” zip files

When downloading a zip file from the internet, Windows "blocks" it. By that I mean I have to right click>Properties>and click unblock. Is there a way to stop windows from doing this?
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4answers
1k views

How to properly secure a wireless home network

I'm soon going to be setting up a wireless network for me and some buddies and (hopefully) making it secure. I have some questions and concerns regarding this and figured someone here could give me a ...
3
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1answer
441 views

Is it possible to change the background behind the OS X login box screen saver unlock?

I have my Mac configured to require a password when it goes to sleep or when the screen saver comes on. When I wake it up I'm presented with a login box and the screen behind it is flat black. I would ...
3
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3answers
902 views

Does web browser uses previously saved cache in private browsing?

All the current versions of top five web browsers support private browsing mode, where they don't save anything as history or cache or cookies. But do they use cache saved from previous normal ...
3
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2answers
7k views

Encrypting a user's directory in Windows 7

I'm running Windows 7 Professional. Is there any way to make a user's directory (anything under C:\Users\Foo) encrypted? I'm looking for something like Apple's FileVault feature. When I login as an ...
3
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2answers
1k views

How to (re)enable the “New” context menu items for an administrator when right-clicking in a folder and selecting New > X?

I just migrated from XP x86 to Win7 x64 (clean install). I had a couple of data drives in my XP x86 system that I physically moved to my Win7 x64 system. When browsing a directory in any of the ...
3
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1answer
136 views

Removing previously type commands at a remote server

I am ssh'ing into a remote server and then su'ing to root. The problem is that sometimes, I have not paid enough attention to the console message, and I have accidentally typed in the root password ...
3
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2answers
3k views

How to split two networks for one Internet connection

I have a single Internet connection and I'd like to create two networks to access it. Network #1: WiFi accessible Network #2: Wired, not accessible from Network #1, but can still get to the Internet ...
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3answers
89 views

Is there a reason why people don't secure public hotspots? [closed]

It seems like a network is considered to be secure by OS(or at least Windows) when the network has a password. By secure, it seems to mean the data gets encrypted. Can't public places just put WPA2 ...
2
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1answer
840 views

Very Slow DSL (ethernet) speed [New Interesting Update]

Very Interesting and Important Update: Due to some reason I just thought to do a complete new setup and this time I decided to again have openSUSE plus Ubuntu. So I first reinstall Lubuntu and then I ...
2
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4answers
2k views

Windows network share on linux server without samba

I want to mount shared folders from my linux server on the network to appear like normal drives in Windows. The server has a private network on one side and a public network (which happens to give me ...
2
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1answer
610 views

Secure alternatives to VPN?

I need a way to access my home network (well, specifically just one server on the network) from anywhere. Usually I would use Himachi (free VPN client, made things very easy) but it has since become ...
2
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1answer
2k views

If someone steals my chromebook while it's off, will him be able to see my cached data?

Does Chrome OS encrypts everything under my account? Does it save unencrypted data to the disk?
2
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1answer
4k views

Can TrueCrypt be configured to dismount volumes when you hibernate?

TrueCrypt can be configured to dismount volumes upon logoff but is it possible to dismount volumes when you hibernate windows?