The protection of computer systems and information from threats such as theft or data destruction.

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1answer
115 views

Can BitLocker in Windows 7 or 8 notify a server or administrator of password-failures?

There seems to be no significant security consequences to failing login-attempts with BitLocker other than brute-force prevention. Is there a way to have a deployment notify a server or remote user ...
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2answers
49 views

Is an OS that is disconnected from the network still secure if it's dual booted alongside a network connected OS?

I've heard the saying: "The only secure computer is one that is disconnected from the network". I'm curious in which cases this applies to dual boot setups. Let's say I've got a laptop with 2 ...
2
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1answer
30k views

How to copy local group policy objects from one machine to another?

I have two Windows 7 Professional desktops. One has a set of local (no Domain Controller) group policy objects imposing restrictions on what programs can be run from that system. I need to copy all ...
2
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3answers
1k views

Is it insecure to leave open an SSH connection?

I am running an Ubuntu Virtual server at a remote location, and several people have SSH access to the server for reasons of web-dev and other various things. When I setup the server I set various ...
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2answers
215 views

Tracking information on HTTPS connection

My organization uses cyberoam firewall. They are monitoring all activities including my search text in Google, Wikipedia etc. So recently i changed to HTTPS versions and now using HTTPS connections of ...
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1answer
171 views

getting “This Connection is Untrusted” often. with www.myopenid.com for instance

This seems like a security problem because the sites that it complains about should (I think) be trustworthy. For instance, I got the message trying to authenticate a login to openid. This ...
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2answers
839 views

Any software can protect external hard drive from being browsed and copied?

Is there any windows software with media player that can protect media data on container level encryption? In other words, users who plugged this HD to a computer with any OS will not be able to copy ...
3
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1answer
73 views

How important is 'sync' for file safety today?

I have a paranoid decades-old habit of frequently typing 'sync' at a command line on my Linux (or any unixy) machine. Some part of my mind thinks this will make sure files are written to disk not ...
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3answers
3k views

Make a permanent exception for Steam's BuildBot in Windows 7 UAC

I'm using Windows 7 64-bit. I am the only user of the computer, although I do have a password-protected backup account. I have not disabled UAC, nor do I wish to. I also use Steam (unfortunately). ...
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1answer
67 views

Security of virtualbox

I have windows xp installed in virtualbox (running on linux) that has the grdp remote display enabled. Is it possible, if one was to connect to my virtualmachine through rdp, to hack into my computer. ...
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0answers
84 views

VPN server on a modem - Safe?

I was going to setup a VPN server to allow LAN access over the Internet through a secure channel. Was going to achieve this, adding functionality to a Windows 2003 server, however I see that the ...
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1answer
5k views

Why is SMTP over SSL between email servers not so popular? [closed]

In my understanding, most of email servers use SMTP/POP/IMAP over SSL to encrypt the email. It supports encryption when client (UA) send email to server (MTA) and UA receive email from MTA. However, ...
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1answer
476 views

allowing only certain commands in a ssh session

I am a lazy linux user and often use very short passwords for my main user account(s). Now, hopefully my firewall takes care of blocking most unsolicited access attempts and the OS (as far as it ...
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3answers
65 views

Ubuntu and windows startup passwords

I will give away my old laptop. It is double bootable: ubuntun and windows. Both OS ask for password at startup. Once I give it away I don't want that someone get some personal data stored in it. ...
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2answers
982 views

Is extracting an ISO safe?

I downloaded the Windows 8 Enterprise Evaluation ISO, but last time I tried to update I extracted it with WinRAR to the desktop. I got an error during the installation. Here are the reasons I can ...
7
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1answer
2k views

Why the need to mount a partition with nosuid when noexec is present?

I am using Fedora Core. I am to create a partition /data where users post some data (all have r+w permissions). Hence, for security purposes, I have to make it non-executable. I understand from Linux ...
2
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1answer
245 views

How to simulate yourself as if you are located internally behind the trusted zone of a FW

I work in security operational center engineer in one company. We manage a lot of customer FW, proxy,..etc. An example of our daily tickets could be the user can't access some site, so we check the ...
2
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1answer
7k views

How do I figure out if my wireless network has WEP, WPA or WPA2 security via command prompt on Windows XP?

I understand how to check what security protocol my wireless network connection is currently using by going to the Wireless Network Connection window like in the following example but how does one ...
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3answers
8k views

Where does SecureCRT save usernames and passwords?

If I check the checkbox remember my password on SecureCRT which file does SecureCRT write my username and password to?
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1answer
1k views

Why do I need to install .NET Framework 3..5.1 updates though I don't have 3.5.1 installed?

I have an HP Pavilion DV6 Laptop with an AMD 3510MX APU, running Win 7 Premium 64-bit. Three security updates for Microsoft Framework ver. 3.5.1 appeared while updating Windows today, but don't ...
0
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1answer
643 views

Blocking the unwanted Web Traffic [closed]

There are some trackers most of the times you could see they are running on your PC, Dependent on the softwares, services, Addons, OPSys, ... much more some of the major trackers could be 'Google', ...
2
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1answer
796 views

Will I experience any issues if I change my laptop's MAC address(es)?

I'm always worried about anonymity and privacy, and just now I realized that some programs have access to the MAC address (and actually do it), eg: Dropbox. So I was wondering if changing the MAC ...
1
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1answer
79 views

Does the work I do with a Live USB Drive or Live DVD leave any trail (eg: tmp files) on my machine?

I want to know how Live DVD and USB drive work. Do they use the disk of my PC at all? If so, do they delete everything after I shut down the PC? If so, are the tmp files deleted securely? Or they ...
39
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1answer
11k views

How do I extract fingerprints from .ssh/known_hosts?

My laptop has a well-populated ~/.ssh/known_hosts file. I'd like to leverage that when connecting to remote hosts from my desktop, since tracking down the fingerprints can be a real chore. However, I ...
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2answers
10k views

In Windows 7, How to query times, when the computer was locked?

Is there a way to get a list of the following times: whenever windows is locked (using windows+l combo) whenever windows is unlocked in the past week? I've tried poking in the event log, to no ...
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1answer
211 views

Remove Application from Mountain Lion's Twitter Apps

How can I remove an application completely from the list under "Security & Privacy" -> "Privacy" -> "Twitter"?
3
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1answer
187 views

A password manager that doesn't require password database

I use a self-made password manager that generates strong passwords based on one strong key and easily rememberable strings for each website/account. The basic principle can be most easily conveyed by ...
2
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1answer
396 views

How can I allow only one user to access an external drive?

In OS X Mountain Lion, I have an external encrypted HD (Mac OS, journaled and encrypted) and I want to have it only accessible for one user (or a group). Is this possible or do I have to unmount ...
2
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1answer
3k views

NAS D-Link DNS320 - set a password protected directory

I set up D-Link DNS-320 NAS in my LAN environment (at this moment every computer in the LAN rans Windows XP or Windows 7, but one day this could change). It does the job but the question is: Is there ...
1
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1answer
148 views

Hosting small site from home, local hostnames showing up in AWStats?

For the past day and a half I've been setting up my Raspberry Pi for hosting a small website. I'm using Apache2, PHP & MySQl and have installed AWStats so I can keep track of some things. ...
0
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1answer
52 views

WinPatrol startup change alert - False alarm?

I'm using the Aurora browser which may contain security regression bugs, and this morning i found WinPatrol notifying me about explorer.exe not autostarting anymore, which seemed worrying. However, ...
5
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1answer
342 views

Windows 8's Confusing Security

I'm using Windows 8 Pro x64. My account in the PC is an administrator account. Among several logical drives in the PC, admins have full control permission on all drives. I've confirmed this by drive's ...
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1answer
297 views

SSH tunneling commands for better security and privacy

i have a centos 6 VPS. I use ssh -p 443 -D 8080 -f -C -N root@ip on mac terminal for SSH tunneling but with wireshark when i sniff my traffic i can see DNS requests are not encrypted ! (i use ...
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2answers
159 views

Can random data from a wipe or encryption of a full drive result in fake partitions appearing in the MBR? [closed]

QUESTION : Can the apparently "random"-ish data written to a full drive (not just a partition) during a random "wipe" or encryption be somehow interpreted by the computer as having a "valid" MBR ...
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1answer
102 views

I landed on an attack page - what to do?

I clicked a link in a gmail message, and arrived at a page that looks like a news site. I clicked a similar link in the next gmail message, and arrived at a page that warns that this is an "attack ...
0
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1answer
73 views

windows prevent app from accessing internet

I bought a desktop password management application and I want to make sure it is secure and doesn't send any data to the developer. So I want to block it from using the internet. I am using Windows ...
1
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1answer
768 views

Suspicious activity on port 3389

Today I opened TCPView to see what was causing a lot of outbound network activity and could only identify svchost.exe on port 3389 (which i understand to be the port used by remote desktop). I ended ...
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2answers
193 views

If I disable password logins, are there any network login implications? [closed]

If I disable logins (eg enable an automatic login as described here) do I open myself up to a host of remote attack possibilities? I would prefer not to have to log in each and every time, but I ...
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2answers
69 views

User specific folder rights vs group membership rights

If a user individually granted one set of rights to a folder but a different set of rights is granted to a group to which he belongs, which takes precedence? I originally thought that the lower ...
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0answers
400 views

How to inherit file permission from folder permissioin in AIX?

We have two users with two different groups: User psoft is attached to psoftgrp group. User db2 is attached to db2grp group. There is a common folder called FILES with 777 permission owned by ...
1
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1answer
230 views

Is my OpenSUSE linux box compromised?

While trying to download one .rar attachment from gmail; OpenSUSE 12.2 (64bit) sytem started behaving weirdly. Thunderbird opening 5-6 tabs for one email. Ideally Thunderbird should just show the ...
2
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2answers
129 views

A computer on my network is hitting my machine

I'm trying to discover the nature of this, since it appears to be a relatively new phenomena and I don't know what it could mean (probably nothing good). The sign that I got of it was a long list of ...
7
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1answer
17k views

Block extensions from being installed in Google Chrome

System Information OS: Windows Vista Home Premium User: Standard User Objective Stop the Standard User from installing any extensions in Google Chrome. There is one currently installed for AVG ...
2
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2answers
124 views

A possible case of hacked email account. What kind of an attack is this? [closed]

I own a Yahoo mail account. I am using this account for sending resumes and receive notifications from various job portals. But yesterday, I found that some 10-15 mails had been sent to random ...
0
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1answer
605 views

TCP-IP versus TCP-IP over VPN

What are the advantages and disadvantages of a TCP-IP connection over VPN opposed to a regular TCP-IP connection? I am interested mainly in speed and security! Thank you.
0
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1answer
326 views

how to make a memory card unreadable only for computers?

I want to make my memory card unreadable for my big brother and his friend's computers. Is it possible to make my memory cards unreadable only for computers but read and writable for mobile phones or ...
0
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1answer
936 views

How to force WinXP to ask for password before software installation/uninstall?

I really like some of the linux security measures it uses. So what i'd like to do is have WinXP Pro SP3 ask for my user password everytime i try to install/remove software. I know I can't make ...
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2answers
718 views

AppLocker Windows 8

Windows 8 only includes AppLocker support in the Enterprise version (Where as Ultimate and Enterprise had it in Win7) it's there in Win8 Pro but doesn't enforce the rules. SRP runs in usermode and ...
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5answers
1k views

Is an antispyware really necessary?

I've been always running frequent antivirus scans on my computers, more because I am a security freak than because I really need them (I'm not one of those users that, after a browsing session, manage ...
12
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5answers
3k views

Stopping people from ssh(ing) into my Ubuntu machine

I want to be able to stop people from been able to SSH onto my machine but still need to SSH out, is this possible?