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

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Why does a site suddenly thinks my network is compromised?

I am on Debian 6 with all updates installed. I was trying to open a link from archtecturelab.net, when up pops this warning page (see below). What's going on? I don't have any windows machines on my ...
2
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1answer
106 views

Mounting old home directory from Windows 7 Image

I used dd to create an entire image of my hard drive before I reformatted. Windows 7 was installed. I've mounted that image using OSFMount (which, by the way, works great!). The problem I'm ...
-1
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3answers
411 views

Why do some browsers ask for confirmation before following any HTTPS link?

I've seen many browsers, both mobile and desktop, show a warning dialog when I click on an HTTPS link. Just warning of the fact that this is an HTTPS link. For example, my Nokia E75 asks "Opening a ...
6
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2answers
209 views

Why might a browser sometimes ask for confirmation when going to an HTTPS page?

When I click on a link to an HTTPS link, the browser will sometimes ask for confirmation or channel me though a form before it will allow me to se the page. Why would it do this? (This question ...
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3answers
3k views

How do I check if some one is accessing my computer from somewhere?

Here is a snap shot of my processes running on Windows XP Is there anything suspicious? How will you know if some one is accessing your computer remotely?
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3answers
10k views

TrueCrypt: NTFS or FAT?

The default file system for a TrueCrypt volume is FAT. Isn't NTFS more robust? What are the pros and cons of creating a TrueCrypt NTFS vs. FAT volume?
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1answer
1k views

How do I open a BioExcess vmdf file in Ubuntu?

I am using Windows 7 along with Ubuntu 11.10 with a Lenovo B560. In windows I have BioExcess software which is provided with the operation system. BioExcess provides the facility of keeping all ...
1
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1answer
4k views

What is the difference between client side and server side certificates?

I am having a hard time understanding client side and server side certificates, where they are used, what they do, etc. I would appreciate some real world examples of where each of them are used.
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5answers
9k views

Automatically login and lock

I want to configure Windows 7 to login automatically after the computer is switched on. That's not because I'm lazy and don't like typing passwords. That's because I want programs that are configured ...
2
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1answer
183 views

How to add esapi to ColdFusion 8

On https://github.com/damonmiller/esapi4cf there is a description of how to add the esapi jars to ColdFusion 9, but I'd like to know how to add them to ColdFusion 8. I but the esapi-2.0.1.jar in a ...
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2answers
220 views

New dyndns server at home needs more security

I have just setup an Ubuntu web server to use at home as a backup and development server for a website I have. I am using dyndns so my colleges can access this also and test new code. This works well ...
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0answers
284 views

How to track the user activities in Linux?

I would like to have something to monitor the user usage of the computer, for example, what application they had opened, what website they go to. Any software for doing this? Thank you.
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3answers
16k views

Does using Tor prevent my ISP/sysadmin from seeing what sites I visit?

Does using The Onion Router prevent my Internet Service Provider or system administrator from seeing what websites I visit?
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2answers
936 views

Wireless security password impossible to hack? [closed]

I am going to be installing openvpn on a router at home running ddwrt. The other end of the tunnel is a vps running openvpn as a server. The thing is, this means that anyone connected to my wireless ...
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1answer
3k views

Windows 7: how to prevent connecting an USB-memory stick, but allow USB keyboard+mouse

We don't want a user plug-in USB-memory sticks into a Windows-7 notebook to prevent copying data. But of course, she should be able to use USB keyboard and mouse. Is it possible to tell Windows to ...
4
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1answer
447 views

Do intermediate certificates get cached in Firefox?

If someone visits site A which has a certificate issues by GoDaddy which also supplied a intermediate certificate between GoDaddy and their CA, would Firefox cache the intermediate certificate and use ...
1
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0answers
149 views

Mac Book Pro locks screen and then won't accept proper password to unlock

I have a MBP 6.2 running mac os x 10.6.8 and I've just recently starting seeing this problem. When I go away from my Mac, I always lock the screen. When I come back and put in my password, the mac ...
0
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1answer
711 views

Another user in my network is using my IP and MAC address - what can I do?

These days I had problem with my internet connection. I have a static IP connection, but some time ago I couldn't access the internet. A friend helped me and we found out that the IP and MAC-address ...
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2answers
334 views

Sending sensitive information, like FTP/SFTP logins, via email

When I work with some bigger clients that have large IT departments, they always send me my login details via email. If my email was being watched by a nefarious type, they could easily gain access to ...
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1answer
848 views

Private IP address over IPSEC tunnel

I have two dedicated servers that I have configured to require AH and ESP between their (public) IP addresses and using racoon I've set up isakmp. The IPsec tunnel between them is working well - I ...
38
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3answers
14k views

Which of the Windows updates are really necessary?

I downloaded a lot of Windows updates in the automatic mode. Are they all necessary? Can I remove some of them? How do we know which ones are necessary?
3
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1answer
275 views

Can I set up a password-dependent partition as seen in “Little Brother”?

I was just reading Little Brother (the Cory Doctorow book) and I thought about how awesome it would be if, on startup, a computer asked for a password. Depending on the password, it could open ...
2
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1answer
281 views

Windows certificate valid even after expired

I have a signed executable. The certificate for that signature says it is usable until 2007, still Windows (7 Professional) says it is valid if I'm opening it via properties dialog. How is that ...
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2answers
332 views

Cleaning up a compromised Windows 7 laptop

OS: Windows 7 Home Premium Machine: Dell Inspiron N7010 Incident : User indicated that after clicking through what he later realized was a bogus Anti-Virus install message all his documents had ...
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1answer
1k views

Why can't we turn off firewall And file sharing?

I was under the impression that turning off file sharing "makes it more secure". Especially when I like to have my firewall switched off, turning off file sharing becomes more important to me. But ...
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4answers
571 views

Can a file being copied over my LAN be sniffed?

I'd like to know if a file (PDF, JPG, or whatever) that I copy with .NET code between two computers in my LAN can be easily sniffed and obtained. If so, what would it take to do it? How trivial would ...
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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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1answer
4k views

Alert when someone connects to my PC

I'm sharing various folders on my Windows 7 PC. When I go to the Computer Management section, I can see if there are any open sessions in my shared folder. When I connect to the PC from another ...
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1answer
562 views

What is the simplest way to use svn repository through firewall without compromizing the security?

I have a multiple Win xp/7 PCs in a network that have no Internet access. All traffic is routed through a firewall PC (latest ubuntu LTS, without admin). This firewall has limited ports open to ...
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3answers
91 views

Why don't browsers warn users when they try to access https websites through proxy? [closed]

Browsers show you an ugly red screen if you try to access a https website whose certificate is fake. But why don't thes warn when you try to access a https site, like GMail, through the corporation's ...
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8answers
6k views

Unintentional mouse movements, am I paranoid?

I have noticed for a few months that my mouse will randomly jerk across the screen. I'm super paranoid about security. Has anyone else experienced this, and found out what causes it? It happens to me ...
7
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2answers
796 views

How do I browse a hard drive that has viruses?

I'm going to be connecting a notebook SATA drive to my computer via USB. This drive may be faulty so it may not work at all, however before it went supposedly "bad" it had a virus on it. My computer ...
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5answers
676 views

Can you physically erase data on a mechanical HDD without destroying it?

I'm just curios, if i have a HDD (a working one ie. not defected), can I physically erase all the data without leaving the possibility to be recovered? ie. to completely format the hdd. By ...
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1answer
2k views

Do we need to turn on DEP for all programs?

I was wondering do we need to turn on DEP for all programs or only essential Windows programs and services? Also, how do we turn off DEP for essential Windows programs and services?
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1answer
214 views

What happens if the computer I am accessing remotely via TeamViewer is infected with malware, etc?

Is there a risk it can infect say my computer even if I don't download a file?
2
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1answer
399 views

How does Trusteer Rapport protect a user when browsing a non-partner website?

Having installed and read Trusteer Rapport's FAQs regarding the level of protection, it states that Rapport's access control policies are set by your bank ...
0
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0answers
82 views

Is there a way to view IP addresses that have been assigned, historically, to a single Windows XP workstation?

For example, if a laptop had an IP address of a.b.c.d during period x and then an IP address of a.b.c.e during period y, would it be possible to see both of these addresses in a list somewhere ...
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6answers
1k views

Is BCCing e-mails guaranteed to be reliable?

In other words is it a safe assumption that no-one of recipients will ever see e-mails in BCC? What if the recipient is an administrator of his (but not sender's) mail server and can do any ...
0
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1answer
414 views

Is dual-booting more secure than having a single operating system installed?

I need some advice. I've recently become wary about using one computer for everything I do, from a security perspective. I have antimalware installed, but I also download and run a lot of stuff I find ...
2
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1answer
94 views

Missing something from Security 101 - No Sudo -> Boot to Recovery -> Add to admin -> Voila?

May be this is a silly question but yesterday I found myself struggling to execute the sudo command because apparently I was taken off the list on my own machine for some reason. What I did was to ...
4
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3answers
817 views

protecting Dropbox files - Dropbox & encryption

I'm using Dropbox to sync files. There's a big disadvantage that files are stored somewhere unencrypted. I'd like to encrypt and decrypt them on the client, but have no clue how to do it. Tried ...
3
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1answer
162 views

What are Lojack's limitations on a laptop not embedded with its software?

What's the difference between Lojack embedded in the system BIOS or low-level and Lojack just installed on an otherwise normal computer?
5
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4answers
259 views

What to do with 6.7GB of logs from a http proxy used by someone to initiate attacks?

Background: I had experimented with nginx's proxy caching mechanisms one night to see if I could speed up a very slow website for a friend of mine -- this experiment went on late into the night, ...
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4answers
788 views

How can I prevent Google Street View from tracking my location?

Since a Google Street View car has passed by my neighborhood, it has associated my wireless router's MAC address to its geographical address. The problem is that my address can be easily obtained by ...
40
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19answers
12k views

Destroy a hard drive without proper equipment [closed]

I need to make two hard drives unreadable. Unfortunately, I have some constraints which make this harder than usual (in particular, they rule out the answers to other questions): I don’t have a ...
8
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5answers
326 views

Media Sanitation

What is considered the minimum amount of overwrites to sanitize media? For example; there are 1, 2, 3, 7, and 35 overwrites methods to make data irrecoverable. Using standard recovery methods (such ...
10
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1answer
5k views

How secure is Apple's Bluetooth keyboard?

Can anybody post any documentation on how Mac OS X and Apple's Bluetooth keyboard pair up with each other? I have seen the articles Apple keyboard pairing over Bluetooth and Which wireless keyboard ...
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3answers
3k views

Can I safely email a bank account statement?

The receiver will need to access the statement in a cyber cafe from a gmail account and print the statement as well. Would it make sense to encrypt the file or something in this scenario? Should I ...
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2answers
1k views

Security warning in Win7 from the Links directory

Every shortcut placed to the Links bar (C:\Users\user_name\Favorites\Links) shows this security warning: Open File - Security Warning Name ... Type: Shortcut ... files from Internet etc. I can ...
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4answers
323 views

If the admin doesn't set the ssh service port on default 22, how can I find the port that he set?

If the admin doesn't set the ssh service port on default 22, how can I find the port that he set? Trust me I don't plan to doing bad things. I am just curious! update: The ssh service port is on 521. ...