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

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5
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2answers
2k views

Are there any downsides to enabling Hardware Virtualization in the BIOS?

I was wondering if there are any downsides (even theoretical) to enabling Hardware Virtualization in the BIOS. I noticed that it is disabled by default, and perhaps it is that way for a reason ...
3
votes
2answers
90 views

Why bother stopping 'root' from ssh login?

Best practice is to remove the ability of 'root' to login over ssh. However, I need to run some Ansible commands and am currently connecting via a user called "amdhske" and then have set this user up ...
0
votes
0answers
165 views

Setting my computer to the correct date and time stops website security certificates from validating

I recently got a new computer and I've come across a peculiar issue related to internet security certificates and setting my time in Windows. Here is my sequence of events thus far: Booted new ...
0
votes
0answers
34 views

Some programs do not run on certain drives

I have multiple games downloaded from Steam etc. I also have 3 hard drives, 1 internal(C:), 2 external(F: and G:). When I install games on C or F, all games run perfectly. but when I install games ...
0
votes
1answer
61 views

How to disable SSLv3 for POODLE attack

I want to Disable SSLv3 to restrict the POODLE attack on my website My website is hosted on Microsoft Windows Server 2003 System I am using Apache Tomcat as an application server with thee version ...
0
votes
2answers
46 views

What is browser fingerprinting and why should I want to avoid it?

What is browser-fingerprinting and why shoould I want to avoid it? If that is related, I am already using adblock and do-not-track.
0
votes
5answers
2k views

Why does a new window open up when I click a link? (Chrome) [closed]

When I click a link on some website, it happens usually when I first boot chrome, then happens again some time later. This new window opens up to a webpage everytime (only variance is the cid ...
2
votes
2answers
154 views

How to remove password of PDF with known password? [duplicate]

I have a personal PDF that I would like to remove the password for because the password was my old phone number (which I may forget). How can this be done? Maybe relevant that the PDF contains form ...
0
votes
2answers
133 views

How to disable Kon-Boot bypassing a Windows password?

I found Kon-Boot, a tool that bypasses user passwords. With Kon-Boot I can login as any user without entering any password by just pressing Enter. How do I disable Kon-Boot bypassing my normal user ...
0
votes
1answer
43 views

Proxy/firewall windows bypass? [closed]

i am in with a little challenge here. We have a network where the Computers connect to our domain, to log on, and get internet connection... This work as a wireless connection. My boss made a very ...
-2
votes
1answer
37 views

Is there any defensive element for non-standard voltages on networks?

Assume that an attacker join to our network as a good person and we give him a cable that is connected to one of our switches. Now, If he connect the wires of that cable to a high voltage (60v for ...
-1
votes
3answers
253 views

How to set up ssh for public key from any machine

I have a Mac running Lion at home. I disabled password ssh login; I just want to use public key. I generated private/public key pair, but now I'm confused. I start a new job tomorrow, and want to ...
-1
votes
1answer
85 views

What is the difference between Access Token , SID , Impersonation Token?

I've listed the definitions picked up from MSDN but I'd like to know the difference between these with an example of a program(process) that might need to make use of them in different scenarios. ...
0
votes
0answers
31 views

Windows Firewall - How can I have multiple public profiles, or multiple private profiles, with different rules?

Windows firewall only seems to have a few options for profiles. Your public, private, and domain profile. What if you want to have 2, or even 3 private profiles though because you move around to ...
0
votes
0answers
27 views

Windows Security asking for user name and password

I have a issue where on a Windows 7 AD machine where it is constantly asking for proxy user name and password. We enter the information and it is accepted, then an hour or two later it asks again. The ...
15
votes
2answers
17k views

Are the insides of LCD monitors dangerous?

I have an LCD monitor that is cracked. So far nothing leaks out but if something starts leaking should I be concerned? I have searched and read everything from: It is safe to be around and ...
1
vote
2answers
68 views

How to forbid IE to browse a https site if the cert is not trusted?

I've been Googled for a while, and didn't find any easy way to do this. Basically, I want to make sure the IE users in my network cannot browse possibly phishing site, or those are compromised with a ...
3
votes
1answer
7k 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 ...
30
votes
2answers
27k views
2
votes
3answers
2k 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). ...
0
votes
1answer
29 views

How can I access an external hard disk through the network and hide it locally

Say I have a Desktop PC attached to it through the USB an external Hard drive. How can I access that drive through my network using my laptop without letting that drive to be accessed or make it ...
0
votes
1answer
155 views

“Access is denied” when editing Windows Store app files even after taking ownership

I'm having a strange problem. I want to edit Windows Store apps' files, but for some reason the WindowsApps folder doesn't give even administrators access by default. So I take ownership of the folder ...
0
votes
1answer
22 views

Securely serving files from cloud

In our web aplication several pages have attachemnts. Some attachments are available for public users and some are secured to registered users. Now we don't have enough infrastructure to host all the ...
8
votes
1answer
449 views

How to migrate my old PGP key to a more secure algorithm?

I have an old PGP using old GnuPG algorithm defaults. According to Best encryption and signing algorithm for GnuPG: RSA/RSA or DSA/Elgamal?, those algorithm settings are no longer sufficient, so I ...
0
votes
1answer
40 views

Will using log in screen command capture passwords?

According to this tutorial running Ctrl-a H in a screen session creates a running log. In general this sounds great, it seems useful to log everything I type or that is printed to output, with the ...
0
votes
1answer
34 views

How can I restrict access to a backup drive to only one program in Windows 7?

I got an old computer from some friends, so I decided to wipe it and set it up as a home NAS running Windows 7. My plan is to have two external drives: one as a network-accessible, read/write device ...
6
votes
2answers
8k views

What does the RADIUS server do in a WPA2 Enterprise setup?

I'd like to upgrade my WiFi from "WPA2 Personal" to "WPA2 Enterprise" mode because I know that in principle, on a WiFi secured with "WPA2 Personal", devices who know the PSK can sniff on each other's ...
0
votes
0answers
81 views

Can I get Google Authenticator as a stand-alone hardware dongle?

I'm setting up Two-Factor Authentication for our small office that will be used to log in to the corporate web site. The TFA is used via the Google Authenticator app that works great, except for a ...
1
vote
1answer
2k views

I received notices of multiple IPs blocked by SSH, should I be concerned?

I recently opened a Wordpress public page from my Synology NAS. Shortly after, I received two notices that different IP addresses (both from China) has been blocked by SSH. Should I be concerned?
1
vote
0answers
30 views

Two-factor authentication without a smartphone or peripheral device? [closed]

Believe it or not, but I don't have a smartphone. Or, maybe I do, but I don't want to have to whip it out just to log in to every site I use if I trust my home computer (or personal portable laptop) ...
4
votes
1answer
3k 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 ...
0
votes
0answers
253 views

Java 8 Update 25: Security settings won't allow a website even after adding to the list

I've been attempting to allow a website to run an unsigned applet, and even after multiple re-installs and security changes, Java still informs me upon launching the applet that security settings ...
3
votes
5answers
15k views

Any folder copied to my Flash/memory card becomes a shortcut?

When I copy any folder to my memory card, it becomes a shortcut and the attributes of that folder changes to protected operating system files (hidden). I've formatted my memory card completely, have ...
32
votes
1answer
4k views

Why does Google call Thunderbird “less secure”?

I've never had problems using Gmail with Thunderbird yet, but while trying to use a free software client for Google Talk/Chat/Hangout I've discovered that, according to Google's document on "less ...
-1
votes
1answer
715 views

John the Ripper: Crack ZipCrypto password

I made a password protected zip file with 7zip, using ZipCrypto algorithm. Set the password to 1234. I am using john-1.7.9-jumbo-7. I followed this manual: ...
120
votes
5answers
11k views

How does Linux know that the new password is similar to the previous one?

A few times I tried to change a user password on various Linux machines and when the new password was similar to the old one, the OS complained that they were too similar. I always wondered, how does ...
0
votes
1answer
49 views

Will sandboxing a program protect my computer from being damaged?

I've heard from a friend that Spotify got attacked by an hacker, which results in it "damaging the hard disks" and stealing private data of the computers where the program is installed. It allegedly ...
14
votes
3answers
11k views

How secure is an SSH tunnel or connection?

I have often advised people to use an SSH tunnel to secure their browsing on open WIFIs or in other insecure situations. I was recently asked by a friend how secure a SSH tunnel is after I had ...
0
votes
1answer
754 views

How to spoof the MAC on a wifi, Linux Mint 17, with NM?

I can't find a reliable way to spoof my mac. If I use the "clone MAC address" on network manager (I use Linux Mint 17, Cinnamon), I can't connect to my wifi. I tried everything, unless I remove the ...
0
votes
0answers
12 views

Ubuntu can't connect using SSH key stored in “Passwords”

I completed this tutorial. I gave the password manager an empty password for storing the SSH password to an SSH server that I frequently connect to in multiple sessions. When I issued ssh ...
0
votes
0answers
514 views

found a bunch of DO_NOT_TRUST_FiddlerRoot personal certificates installed on my system

I was looking at my personal certificates in Google Chrome and found a bunch of DO_NOT_TRUST_FiddlerRoot certs there. I don't know how these got there. Should I be concerned?
1
vote
1answer
302 views

Can YouTube safety mode be configured to survive a browser history clear?

I turned on YouTube's safety mode and set it to "Lock this Browser". Despite the text I found on Google's support site, the lock does not seem to work: Safety mode is enabled on a browser level, ...
-1
votes
2answers
51 views

How to lock my computer through incoming connection directly into my computer

Im on a macbook yosemite, I usually get connected to internet through my landlord's wifi connection. How can I make sure that he cannot see or access my files in my computer (in Shared section of my ...
5
votes
4answers
4k views

Windows 8.1 sign in to Microsoft account without using Microsoft online password?

With Windows 8.1, Microsoft appears to be pushing users even harder towards signing in with a Microsoft account rather than a local user account. My Microsoft account has a secure (long, hard to ...
2
votes
3answers
30k views

How do we find out who is using the router?

How do we see all the connections that a router currently has? Is there a way to determine the IP addresses of the connected "users"?
0
votes
1answer
255 views

Why hydra doesn't return a valid username&password with a valid supplied username&password

I'm just trying out hydra on OSX Yosemite, installed with brew brew info hydra hydra: stable 8.0 (bottled), HEAD https://www.thc.org/thc-hydra/ /usr/local/Cellar/hydra/8.0_1 (14 files, 1.2M) * ...
1
vote
3answers
92 views

What is the theory behind securely delete files on a SSD?

Assume that I have a file which I want to securely delete in a ssd. If I do a regular detele and then fill all unused space with a random data file, would this works?
1
vote
3answers
2k views

How to lock Windows screen on startup? [duplicate]

I like to go get coffee while the computer starts. However we have a policy that says the screen must be locked when away. How can I make sure that the screen locks immediately after logging in?
16
votes
6answers
13k views

How to securely delete files stored on a SSD?

From a (very long, but definitely worth to read) article on SSDs: When you delete a file in your OS, there is no reaction from either a hard drive or SSD. It isn’t until you overwrite the sector ...
0
votes
0answers
78 views

How to remove Microsoft Account?

I have an account that I don't use anymore. I would like to remove it in order to test some Microsoft Azure coding features. The problem is that I can't remove the account. I navigate to the account ...