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

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3
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3answers
303 views

Would it be possible to add extra security before Windows boots? [duplicate]

Possible Duplicate: Bios password protection For example, an username / password prompt that would not even boot Windows (or whatever OS) until the correct credentials are entered.
0
votes
2answers
278 views

Is there a way to hide EXE files when browsing a USB storage devices?

Say I have a USB storage device that's only supposed to contain data files. Is there a way to browse the contents of that device, but with any dangerous file types (such as EXE etc) hidden as if ...
0
votes
1answer
453 views

Hiding/encrypting an external hdd partition in a non-destructive way ?

i have an external hdd with personal info like bank details personal projects etc. I have 2 partitions, one for my personal stuff and one for casual stuff. I tried truecrypt, but when the disk is ...
1
vote
2answers
188 views

How can I harden my system against an infected website? [closed]

Let’s say that I have to go to a website, and I am 99% sure that it will attempt to put a virus on my computer somehow. What settings can I change in my browser, OS, etc. to make sure that I will be ...
0
votes
0answers
76 views

Mysterious C:\Users\cwilson folder in Windows

I'm worried that my Windows computer was compromised, because I am the sole owner, and I recently came across a strange folder on my computer. C:\Users\cwilson\. Either someone created their own ...
1
vote
1answer
1k views

My Dell notebook shipped with a HDD that includes Full Disk Encryption. Can I upgrade it? [closed]

I have a Dell Latitude E6510 that includes a fingerprint scanner and a Seagate SATA drive that includes Seagate's "DriveTrust' full-disk encryption technology. It's a 250GB drive that I'd like to ...
0
votes
5answers
10k views

The requested security information is either unavailable or cannot be displayed

Something or someone had recently deleted 90% of the files on the network. The recovery was done by copying backup files from a Linux based NAS (Baffalo Terastation Pro) back into the win2k8 servers. ...
3
votes
2answers
949 views

Why does Security Essentials notify me about custom DLL file?

I created a dll file with gcc(mingw). When I start my application Microsoft Security Essentials notifies me: Security Essentials detected items on your PC that it doesn't recognize Why does ...
9
votes
7answers
12k views

How to send a batch file by email

Trying to send a batch file as an email attachment, I get the following error: mx.google.com rejected your message to the following e-mail addresses: foo@googlemail.com mx.google.com ...
1
vote
1answer
283 views

How to protect custom shapes from being reused? Visio 2010

We are building a set of documentation for our business with Visio 2010. We need to make the Visio files accessible to external consultants for review, but we want to ensure that they cannot copy any ...
0
votes
1answer
197 views

Protect Windows VPN from Unauthorized Users

I have a VPN connection that I use while away from home to remote into my home network. I would use a zero config solution like Hamachi, but need access from my mobile device. Therefore, I have my ...
0
votes
1answer
85 views

Can I use an ssh tunnel to secure an otherwise insecure connection?

Is there a way to set up an ssh tunnel, then connect an arbitrary program (say, an IRC client) to the port on localhost and get an effectively secure connection to a server? How would I go about doing ...
-2
votes
1answer
269 views

port 21 and 22 are open on a fresh install of mountain lion

I have Mountain Lion (fresh install as of today), I have also reset the router and it has no port forwarding or anything. There are no other devices connect to the router but just the mac. I did a ...
3
votes
2answers
930 views

Best way to authorize a USB device in an organisation?

I am developing a project where I need to restrict usage of accessing non white-listed USB devices in the organization's network. I am using it by checking the VID and PID of that USB devices. Now, ...
5
votes
3answers
17k views

How to use OpenVPN through a restrictive firewall?

I'm currently in the situation of attempting to setup OpenVPN on a personal VPS, for connection primarily through an overly restrictive firewall. All of the setups mentioned below work when used ...
0
votes
1answer
2k views

Multiple connection attempts per minute on udp port 1024 - What might be the cause?

Here's a small sample from my firewall log: Sep 24 14:51:04 server Shorewall:net2fw:DROP: IN=eth0 OUT= MAC=44:87:fc:8a:f2:c3:00:04:ed:dd:e6:4a:08:00 SRC=213.5.110.105 DST=10.1.1.3 LEN=131 TOS=00 ...
1
vote
2answers
927 views

Are password managers like 1Password trustworthy? [closed]

I like the idea of using a password manager to help me maintain separate, random passwords for each site I visit. I don't like the idea of typing all my logins into a single piece of software. How ...
1
vote
3answers
4k views

Automatically deny hacking attempts in CentOS?

My server is under attack. I am logging this kind of attempts: Sep 22 06:39:11 s1574**** sshd[16453]: Failed password for invalid user amber from 64.215.17.4 port 35182 ssh2 Sep 22 04:39:11 ...
1
vote
1answer
508 views

Neutralize fork-bomb through ssh

I have access to a server through SSH (namely, it's our informatics server :) ) and ran a fork-bomb there (the bash one). Is there a way to neutralize it remotely? Just using ssh name@server does just ...
1
vote
2answers
2k views

After enabling FIPS on Windows 7, connection to XP MOde and XP Remote Desktop stops working

In an effort to secure my Windows 7 Pro x64 workstationI turned on FIPS in the Local Security Policy editor. Security Settings/Local Policies/Security Options/ System cryptography: Use FIPS compliant ...
3
votes
2answers
1k views

How to create limited user accounts in Linux

I want to create a user account for each of the key programs installed on my debian server. For example, for the following programs: Tomcat Nginx Supervisor PostgreSQL This seems to be recommended ...
5
votes
1answer
157 views

Can a LCD monitor be used to log / monitor your activities?

I'm borrowing an LCD monitor from someone I don't completely trust, to use with my laptop. Can the LCD monitor on its own be used to log the screens I view or websites I visit, or any other data? ...
1
vote
1answer
487 views

What alternative security measures are there to full drive encryption (for performance reasons)?

I'm evaluating full drive encryption using Truecrypt on my Crucial M4 SSD on Windows 7 32bit Pro on my Toshiba NB100 Atom N270 Netbook. I've encrypted this and noticed an increase in the boot time ...
0
votes
1answer
178 views

Can I remove “other” read access to /etc in Linux (CentOS)

I know this is probably a stupid question. I'm guessing that a lot of "others" (various processes) need read access to /etc and other directories. I am giving SSH access to an outside developer and I ...
0
votes
1answer
2k views

How to determine if a Service account has login as batch rights to a server

I tried the following command net user {serviceaccount} /domain but the command only told me which machines the service account could run on, not whether it had Logon as Batch rights. is it ...
0
votes
2answers
1k views

Can VPN or TOR protect me from my ISP [closed]

For connecting to internet I need to open the ISPs website and login. I believe during this my IP address can be tracked. So how will VPN or TOR help here. If not any other solution?
1
vote
1answer
182 views

How to use internet anonymously [closed]

Let's say someone has decided to track my internet actively. He knows my email and Skype id. How do I work on internet securely? What kind of software do I need to cover my tracks? Also how to prevent ...
0
votes
1answer
210 views

Full disk encryption: possible to tie key to particular BIOS/Laptop?

The organisation I work for has laptops outfitted with FDE-drives, i.e. drives that encrypt data on the fly such that in the case of a stolen laptop, no data can be retrieved by removing the HDD. ...
2
votes
0answers
620 views

How to remove Ahnlab policy agent?

Anybody know how to remove the Ahnlab Policy agent? I was forced to install it so that I could connect to the campus network when I visited Korea. Now that I'm home, I would like to remove it. ...
3
votes
2answers
2k views

What does tor NEWNYM in tor do?

Can someone explain to me (in layman terms if possible) what sending tor the signal NEWNYM does? I have read in several blogs that it should improve performance and/or improve anonymity but I could ...
4
votes
3answers
2k views

Bypassing keyloggers - virtual keyboard

How effective are on-screen keyboards against software keyloggers? Windows 7 on-screen keyboard to be specific. They will definitely bypass hardware keyloggers but what about sophisticated software ...
59
votes
6answers
4k views

Is there a point in installing antivirus on Ubuntu?

I have recently started using Ubuntu. I am wondering about the point of installing antivirus programs on Ubuntu. On SuperUser, I found the opinion that it only detects "windows viruses" and removes ...
0
votes
0answers
159 views

Chrome >= Beta vs. Stable from security aspect

While I always read the huge list of security related fixes for Stable in the Chromium blog, I never see the Beta or any other version getting these fixes. As in: There is no such "announcement" in ...
2
votes
0answers
113 views

Do there exist any published security audits of FreeOTFE?

I see that http://www.freeotfe.org offers FOSS encryption software for Windows. This software also has a Wikipedia article devoted to it. However, it appears to have received less scrutiny than its ...
3
votes
2answers
131 views

2 Independent Windows 7 hd in desktop

I have a PC with 2 HDDs and both have Windows 7 installed. How can I set up Windows 7 to make sure that when I boot from one HDD, I can't see the other? I want to be sure that neither I nor any ...
4
votes
0answers
982 views

Windows 7 - How to access my documents from Windows 8 (dual boot) [closed]

I am dual booting Windows 7 and Windows 8 on two different partitions of the same drive: Win7: (C:) Win8: (D:) I am trying to get access to my Win7 user folder (C:\Users\Mason) in order to access ...
1
vote
3answers
2k views

Effectively switching email accounts (Yahoo Mail to Gmail) [closed]

I have decided to ditch my Yahoo email addresses, and add a second Gmail address for my "professional" stuff (bills, college, work, etc). I am doing this because of the 2-step verification feature ...
35
votes
4answers
42k views

Can admins monitor my activity locally even when I use a VPN?

My school has one of those super overreacting web blockers (specifically Fortisnet) that blocks things that should be accessible by a high-school senior trying to research projects. Despite many ...
0
votes
0answers
196 views

security of lubuntu VM

I use a Lubuntu 12.04 installed inside a VM to browse less than safe websites with Chrome. I would like to know of the relevant security risks this setup poses to my home network. I do not store ...
1
vote
1answer
2k views

mystery Internet traffic to port 445

Recently, I noticed traffic from the office network to TCP port 445 on the Internet [a]. Below are the Linux firewall log entries to Facebook's network [b] and Google's network [c]. I would like to ...
3
votes
2answers
763 views

Security Essentials not installing and I suspect my machine is infected with malware

My mouse seems to be automatically right-clicking every few seconds, and sometimes constantly. My cursor will abruptly become an hourglass for a moment every once in a while, as well. It happens in ...
0
votes
1answer
644 views

How I can view and block specific applications temporarily from accessing Internet?

I don't want to block any application permanently from accessing internet. I just want to block some specific applications for a particular time period to gain speed in running some other. I know ...
2
votes
1answer
439 views

What other ports should I block to maximize server security? PS using IPTABLES

I have blocked ports 80, 9001, 9080. What other ports should be blocked to maximize security? PS: It is a asterisk server / PBX Sorry: New Systems Admin here :) Thanks!
4
votes
8answers
2k views

How to securely generate memorable passwords? [closed]

TL;DR: how secure are memorable password generators, given the fact that `memorable' passwords are a subset of total password space? How big is the entropy in memorable passwords compared to random ...
0
votes
1answer
357 views

How to prevent non-administrator users from seeing script codes in c:\ while they can still make use of them?

I have a Windows 7 Ultimate machine with some users with and without administrative privileges. There are confidential batch files and confidential LaTeX packages in some directories in c:\. Only ...
2
votes
1answer
192 views

Java run ONLY certain signed applets

Regarding the Java 0-day exploit I'd like to configure the Java Runtime such that it only executes signed applets, preferably such that I either define a whilelist of certificates I allow define ...
0
votes
1answer
1k views

How can I block a certain set of commands from being executed in linux?

I want to block a set of commands as soon as they are entered by the user on the terminal. How can I do that?
3
votes
1answer
202 views

How can I disable Java in my browser?

A new Java 0-day exploit was discovered on 2012-08-26, and is out in the wild. It affects Oracle's Java on Windows, Mac and Linux desktops and affects all major browsers. Plenty of websites recommend ...
0
votes
0answers
73 views

Can one use SSL certificates for user authentication to websites?

I hear that it is possible to create SSL certificates and use them instead of password authentication. Is this true and how to do it? And do all SSL enabled sites allow this?
1
vote
1answer
5k views

Windows 7 Cached Credentials - No Logon Server. Can't Log In

I recently transferred my domain controller over to another Windows 2003 server. The old one was retired and disconnected from the network. I have since found that I can no longer log into my laptop ...