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

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How to make a self-signed certificate trusted?

I've created a self signed certificate on my Windows 10 PC and would like to see it trusted by the web browsers on the same machine. To do this, I've added the certificate to the 'Trusted Root ...
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2answers
29 views

How safe is it to host an HTTP Apache server at home?

I have an old server with Ubuntu server and Apache2 installed. I am using it to run a small one page site. I am using 'freenoms' for the free domain 'musicmash.tk' which is connecting to my public IP. ...
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0answers
12 views

Windows 7 resource manager shows TCP sockets without a process, what is in the background?

Recently I've found some suspicious network activity from my computer, and I was curious, what process my Win7 does this. This is what I've found in the resource manager: As you can see, there are ...
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0answers
35 views

my mac is asking me if I want to allow it to access information on an *unknown* iPhone … why?

When I came into my office this morning, my Mac Pro had an iTunes popup (#1):
 
 Do you want to allow this computer to access information on "John Doe's iPhone"? If you don't allow access, ...
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0answers
35 views

Difference between separate admin/standard user and admin with UAC/passwort prompt?

I just installed Windows 10 on a new PC and was wondering what is more secure. Assuming UAC is enabled on the highest setting and I'm the only one using the PC. a separate admin and standard account ...
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2answers
40 views

C:\Users Folder shared by default with everyone?- Security Fault?Compromised data?

yesterday i was very confused about finding out, that my C:\Users Folder under Windows 7 are fully shared. So i googeld out and found this TechNet article: https://technet.microsoft.com/de-de/library/...
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1answer
20 views

Don't want Logged in user to change any files

We have a PC that we are setting up for a client, and the client wants us to lock down the PC as much as possible. I have a user called UserA that is the user that AutoLogs into the system. This ...
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0answers
30 views

Is the File History folder protected from attacks in the local computer?

These days many users are hit by cryptolocker attacks. I usually recommend family and friends to use Windows File history to get decent simple backups. What I am not sure about is how well Windows ...
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1answer
25 views

EFS and encrypting new files automatically

I have an issue where files are not always being encrypted. I did a right-click and set the folder to encrypt all sub-folders and files when they are dropped in. As of right now, new files are not ...
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1answer
69 views

Best way to prevent running malicious/virus macro on PC

I've got a question. Could You provide some hints/solutions about preventing running suspicious macro's in Office apps? What I've already know: there is a possibility to turn off all macro's without ...
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2answers
34 views

Can spammers use DKIM to check if my mail is active?

I installed DKIM Verifier plug-in in my Thunderbird mail client, just to see how this DKIM technology works. I don't really understand details of that technology, but it seems to check the signature ...
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1answer
28 views

What is the purpose of lights out management for the average consumer?

I recently read this post over on Skeptics which concludes that many consumer computers contain components which can access the internet and perform operations while the computer is powered off. The ...
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1answer
56 views

Secure communication between linux machines

I have four machines in network which can talk with password-less ssh to each other and themselves. Now, I want to make the communication between them secure. How I can create a VPN between them? In ...
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0answers
17 views

View powerpoint online while prevent users from saving it

My company currently has a number of powerpoint-based trainings. While we want these to be accessible and viewable by our client, we do not wish for our client to be able to distribute the material. ...
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3answers
77 views

Accessing a malicious website through virtual machine

I want to watch a series of episodes on a website that I found on the internet which happened to be malicious. Unfortunately, I couldn't find different websites that provide those episodes. For my ...
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2answers
176 views

TeamViewer - set password for unattended access?

As seen in the news (June 2016): There have been hacking activities through TeamViewer. Currently it seems this was mainly because of careless end users. For example: I have an account at ...
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0answers
17 views

Self-encrypting disk with no ATA password

I'm currently investigating self-encrypting disks (SED) and was wondering what would happen if I don't set an authentication key (AK) to protect the disk's data encryption key (DEK). Would it be ...
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1answer
27 views

Should I restrict my SSH port to a specific IP?

After setting PasswordAuthentication no, is there any security concerned reason to restrict my SSH port to a specific IP? Can I open my 22 port to the internet?
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0answers
71 views

Solving Windows 10 “Activation permission for the COM Server application”

On a clean genuine Windows 10 installation, the Event Viewer throws one of these errors every 2-5 minutes: The application-specific permission settings do not grant Local Activation permission ...
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37 views

Disable Open File security check Windows 10

I have not found a suitable solution for this: Open File security Check For the record this is the security dialog I am referring to: This is mounted as a network drive from a Raspberry Pi ...
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0answers
12 views

Windows: Make file only accessible for certain process

I'm running SyncBack Pro which saves settings within an *.ini-file. As the ini-file contains a password, I'd like to modify the access rights so that only SyncBack.exe can access the file. If that ...
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0answers
46 views

What is wrong with my security here?

I followed this method for creating an email address for my desktop (so that I can automate certain emails, etc.) and when I try to test an email I get: mail: cannot send message: Process exited with ...
3
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1answer
52 views

Can someone explain strange inbound connections on my server log?

Ok, so I only know as much about networking as I have learned in my Computer Systems and Electronics courses, and I am seeing something that I'm not sure how to interpret. My brother wanted me to make ...
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0answers
23 views

VPN service in place but I still received a copy right infringement notice from my ISP?

I have a VPN service that I use but I received a copy right infringement notice from my ISP. I'm not sure how this was possible but I hope that some one can help me with this problem. I don't know if ...
1
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1answer
22 views

Making sure my desktop is locked when it goes into sleep mode

Is there a way to install some kind of a hook that'd make sure xlock or a similar program is called before my laptop goes to sleep, regardless of the origin of the request (calling pm-suspend from a ...
1
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2answers
46 views

Using OS in virtual-machine increases security? [closed]

I have question about security. I don't know if it's good place to ask this question here. Let's say I want work with money, trade it and so on.. And I have ubuntu on iron on my laptop, but I have ...
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1answer
41 views

Encrypt Filenames - I have no idea what it is and where to use it. Please explain

I saw in 7zip checkbox to Encrypt Filename and than someone told me to encrypt filename and encrypt the file. What does it mean filename encryption?
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1answer
7 views

Unix accounting: lastcomm commands with no on-disk executables - what are they?

A security related exercise: For extra security, I have traditional Unix accounting (acct) turned on. This can help investigate suspicious activity after the fact. According to the man page /var/log/...
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0answers
123 views

WPS Pixie atack: WPS pin not found and exit after seconf trial

I use reaver for test my network for pixie vulnerability. After run the command: reaver -i wlan0mon -b 60:E3:27:BC:11:84 -c 4 -vvv -K 1 -f I have follow output: [+] Switching wlan0mon to ...
3
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0answers
522 views

How to set TLS protocols as default after applying KB3140245?

This is about instructions to Windows update KB3140245 on a 64-bit Windows 7 machine. Microsoft released this update some time ago that "allows users to change system-wide default protocols for ...
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0answers
30 views

What type of attack is this by adding /127.0.0.1/ in the URI request?

I am hosting a website and I see a lot of request that include /127.0.0.1/127.0.0.1/ in the URI. Some times the /127.0.0.1/ is present multiple of time in the URI e.g /any/path//127.0.0.1/127.0.0.1/...
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0answers
23 views

Can chrome extensions read data from internal chrome*:// pages?

Most Chrome extensions ask to "read/modify data on all websites". But can they read, for instance, data from chrome-extensions://? From experience, I know that most web clippers simply don't work on ...
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48 views

Can't connect with TLS1.2/Client auth from IE/Chrome. Only works with Firefox

I have a client for which I'm developing an app. That app must connect to their server, which sits behind a NetScaler load balancer configured with TLS1.2 only and requires client certificate ...
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1answer
29 views

Windows 10 Home - cannot access admin only drive as administrator

I upgraded my Windows 7 HOME to Windows 10. I had some user accounts, one an administrator, the other a standard user. I had edited the security so that some drive and folders had no read permission ...
1
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1answer
35 views

Cannot download old backup from Gmail as it's an archive

Back in 2007/2008 I emailed myself a backup of an important file. It was stored in a password protected RAR archive. I am unable to download the attachment or forward it and given the reason Anti-...
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0answers
15 views

Tripwire: Allow to add and remove files, but not modify them

I'm hosting an ubuntu server 14.04 I want to secure with tripwire (that one from the repositories). I have a cache directory, where files are added and removed but will never be modified once created....
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1answer
37 views

Sure way to get rid of a trojan [duplicate]

I think I have a trojan. svchost.exe is consuming %25 cpu all the time, and my Microsoft Security Essentials reports a different virus every half an hour or so. From what I understand the trojan is ...
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0answers
16 views

Secure a PDF document on a future date

I'd like to "secure" a PDF document on some future date (specified by me). By "secure" I mean either of the following: the document becomes encrypted with a password (and cannot be open without one) ...
1
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1answer
76 views

Access file on a USB drive after drive removal

Can an Excel file, opened from a USB flash drive, edited but not copied to the computer, be accessed after flash drive removal? If I open an Excel file on my private computer with Windows installed, ...
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1answer
56 views

How can I improve my linux security? [closed]

I dabble in Linux from time to time. Oddly enough at one time in the past and just today, I've found my system compromised (that is my perception at least). In my opinion I'm no expert in Linux or ...
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3answers
53 views

What does security “patching” mean, and why is it difficult?

I just got to learn to manage a server, and got my first VPS running. As you may think, it's a "personal" training server, not running for any company. I keep hearing about "security patching" and a ...
0
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1answer
47 views

Is it in way bad for a PC to leave its case off? [duplicate]

For a desktop PC is it bad to leave the side panel to it's case off? Initially I thought it would help cooling (and allow me easy access) but wondered if it lets more dust in. Any other pros and cons?...
2
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0answers
61 views

Is there anything legitimate that could change my Screensaver security settings?

A few days ago my laptop started displaying the "Locked" screen if I was away from my computer for a while. Looking into my screensaver settings, it was set to do this after 10 minutes even though ...
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votes
1answer
36 views

How to secure a linux system [duplicate]

-6 down vote favorite I`m n3w to this how and what are the best tried and true ways to harden a linux system? say for example a fresh build of Ubuntu 14.10 I have been looking at seliunx vs ...
1
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1answer
51 views

Edit host file to redirect domains, Hackxor?

I am playing with a vulnerable web application game called Hackxor. The installation instruction says... "Configure your hosts file (/etc/hosts on linux) to redirect the following domains to the IP ...
1
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1answer
53 views

Running an OpenVPN service on a VPS web server

I've deployed a VPS server on digitalocean to give node.js and applications like Ghost a try. Meanwhile, I want to use the droplet as a personal VPN as well. Would it be OK to run an OpenVpn service ...
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3answers
295 views

Netstat shows very large number of connected IPs

I just ran netstat on my computer and found a large number of remote IPs connected, at least one of which shows as being from a website which when I googled was listed as a known scam site -- a site ...
0
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1answer
21 views

Passwordless ssh login and cloning repositories via ssh gateway server?

In order to access a particular linux machine, I must first ssh to a provided gateway server, however I never receive a command line on the gateway server. Immediately on login to the gateway I am ...
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2answers
91 views

Are .eml attachments a security risk?

My email service provider blocks mails with attached .eml files, apparently for security reasons, with the result that I loose relevant mails. I have tried to find a description of the current ...
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0answers
47 views

debsecan Fix CVE on debian

I just installed debsecan on Debian 8.1 to view the vulnerabilities that I have, and there were quite a few. Searching the web I see that most of them have a fix but I don't manage to figure out how ...