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

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35 views

What's the security used in my school network

In my school we have to use the school computers to our homework. I like to work on my machine because I have all well configured (Vim, Firefox and I use Ubuntu instead of Windows ...etc). I use my ...
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1answer
19 views

Lost all desktop settings

I'm using windows 7. I logged in one morning and found my desktop background was black, and I had lost all my desktop icons & settings. I then found that I could not open any application - it ...
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0answers
16 views

Encrypting a bootable (Windows Portable) USB drive

I know it's possible to install Windows on a USB flash drive and in theory any PC you plug it into will boot the said Windows install, provided Windows will have suitable drivers for the hardware. ...
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1answer
42 views

Malicious port scanners: do they target machines that they know exist even if they're powered off?

I set up my ageing Netgear (circa 2007) router to send email security logs quite a long time ago, and then never really looked at them or fully understood what they meant. I was doing a general sweep ...
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1answer
21 views

Send emails over port 80 using Linux command line

I have a server that is not allowed to send outgoing emails or have access to any name servers. What it has is an http proxy that allows it to access the other servers and I am able to do wget ...
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0answers
12 views

Github for Mac installs a webserver, github conduit. Is that a security risk?

Github for Mac is a helpful app provided for free by the people at Github.com. It's an OS/X GUI for simple operations with git, and works quite well. It turns out that when I visit a repo on ...
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0answers
19 views

What is atos? It keeps popping up on my Mac

So what is atos? It keeps popping up in on my mac screen that I need to give my password to let it do something. Is this a virus or is my Mac being hacked? Please help!!!
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1answer
26 views

Prevent access to my PHP page source?

If I publish a PHP page (e.g. mypage.php) on my hosted web space (the URL of the PHP page is publicly known, e.g. http://example.com/mypage.php), can a hacker access in some way the PHP source of this ...
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0answers
11 views

Removing a Redirect Virus from Fedora Linux

Seems like there is a redirect virus on my computer but I am not able to remove it or even find where exactly the problem is. There is nothing much about it on the Internet either. I am running Fedora ...
5
votes
1answer
231 views

Why is data still recoverable after writing zeros to a harddrive? [closed]

If you write 0s to the entire HDD, why is it that data can still be recovered? Why would you need to perform more than one pass?
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votes
3answers
95 views

How secure is a password with English words? [closed]

I typed the following password in howsecureismypassword.net yummy candy yummy It said it would take 100 billion years for a pc to crack. Is this accurate? Even though it has English words (that ...
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0answers
5 views

How to make an exception in a pam module?

I have 2 servers: A and B. I want A to connect to B via ssh (as a non-root user) to run a sudo command. But sudo on B requires a yubikey input to allow the command: auth required pam_yubico.so ...
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1answer
18 views

Is it safe to git clone https://usr:PWD@gitserver/repo with plain text passphrase in the URL?

Is it safe to git clone https://usr:PWD@gitserver/repo with plain text passphrase in the URL?
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0answers
41 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 ...
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2answers
57 views

SSL Certificates Simple questions

I was busy studying SSL certificates and i know that certificates are used for Authentication, which verifies the identity of someone or something. Privacy, which ensures that information is only ...
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0answers
28 views

“Anonymous logon” happen once in a while on my machine

There is some random "Anonymous logon" session happening once in a while from 3 machines in our company, 3 machines on around 1000. I have a windows 7 enterprise 64 bits edition. I have all updates ...
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0answers
13 views

yara signatures for detect and identify anti virus [closed]

my name is reza kazemi. I doing a research about anti virus. therefore I need a database of yara signatures for detect and identify anti virus. please document, file or an example of code written Yara ...
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0answers
31 views

What are spiders trying to achieve on my site? [migrated]

I've recently set up a build server that compiles Java source on Github webhooks. I created a public page for downloading latest .jars with a top level domain and I'm logging requests to it. What are ...
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0answers
23 views

How can I share management of a game server between multiple people? [closed]

I'm trying to figure out a reasonably secure way I can share management of a game server between me and a few other trusted users. I want all of us to be able to be able to start and stop servers for ...
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2answers
50 views

Best way to make returning a loaner computer later on secure and private? [closed]

I just spent something like 8+ hours, over the course of a week or so here and there, readying a work laptop for return to an employer so that all private information was removed (I did secure erase ...
1
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1answer
38 views

Get username of a thread

How to gather the username/SID/account of a particular thread? No, I am not looking for account of the process, but of specific thread. I've looked-up Process Explorer, but it doesn't show ...
0
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0answers
37 views

Very high CPU usage on Linux server

I have the following server: Ubuntu 14 LTS 64 bit Linode Hosting fail2ban enabled firewall enabled SSH root login diabled and only key access to server. Problem: When I run htop, it shows high ...
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0answers
14 views

Gmail unusual activity but no alert [migrated]

From time to time, I check the gmail "Last account activity" log. I live in Belgium and mainly use the usual gmail website. Yesterday, I noticed there was two mobile connections from France, with this ...
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0answers
40 views

Security Essentials suspecting explorer.exe and logging behavior warnings?

Most times I log into my Windows 7, Microsoft Security Essentials will tell me that I should upload C:\Windows\explorer.exe to Microsoft for analysis. It does however not tell me why. I checked the ...
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votes
0answers
15 views

How can I verify whether a cloud-based service uses client-side encryption?

I'm thinking of using a fairly new online journalling website (http://www.monkkee.com) for my personal journal. Given the nature of the data being highly personal, I'm extremely concerned about ...
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0answers
14 views

LaCie 2big, use existing disks (not formatted by the device)

About the LaCie 2big Quadra: I have 2 x 1T disks that have been formatted and used on Linux (not on LaCie). It happens that both disks have the exact same partitioning, while the content data is ...
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0answers
33 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 ...
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votes
1answer
45 views

Do I need to set a wifi password if I live on large property? [closed]

To reach my wifi, an intruder would need to enter a fence and sit next to the house. It seems unlikely, so I'm getting pushback from my housemates. Does not entering a password potentially make it ...
0
votes
1answer
26 views

Log file for ssh attempts?

I have an old Macbook running Yosemite which I've connected to the internet via my college network. I foolishly enabled ssh access while my computer had a weak password, and now I want to check my ...
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1answer
25 views

Why Access denied when removing files/folder on Windows

What does really happen when I try to remove a folder on windows (7, 2008, 2012) and get the "famous": You need permission to perform this action ... Folder Access denied What I've done : I ...
3
votes
2answers
145 views

Unlock External HD after locker has been deleted

I used lockMyDrive software in order to lock my external hard drive. The software locates the interface, where the user should insert the password, in the external hard drive itself. Everything was ...
0
votes
1answer
41 views

Recommended protection from inbound traffic and set up of 3 vlans on home network [closed]

There are so many questions out there on this topic without the answer I'm looking for. They talk about basics like WPA2 and how to get neighbors to stop using their Wi-Fi.... Perhaps I don't know the ...
0
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2answers
43 views

Does Outlook prevent unauthorized Windows users from accessing a .PST file?

If one creates a .PST file in Microsoft Outlook and does not specify a password during creation does Outlook automatically prevent other users from accessing the data in the .PST file? If not, is ...
0
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1answer
68 views

Windows 8/8.1 UEFI Secure Boot custom keys

Is there the ability to run the OS Windows 8/8.1 with custom keys? I created my certificate with "makekert" utility, then i use signtool to sign files "memtest.efi", "bootmgfw.efi", "bootmg.efi", ...
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2answers
35 views

Should I be worry after opening suspicious Email attachment?

Yesterday, I have received this following suspicious email Normally, I would not click on any of the email attachments if I am not sure about the origin of it. But yesterday, I accidentally opened ...
0
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0answers
16 views

Google Drive - restrict access to an e-mail domain, but allow open access within that domain

I have a Google Drive spreadsheet and I would like to allow anyone with a @foo.com email to edit it, but prevent anyone else from seeing it. Is that possible directly within Google Drive? If not, is ...
0
votes
1answer
25 views

How to protect an SMB shared directory with a password on WIndows Server 2008?

There is this directoy inside a shared resource that's accessible to everyone and I have to secure it so only one user can have access to it, so I proceeded to create their account and then set the ...
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2answers
13 views

Dangers of Authenticity to host can't be established?

I am trying to connect to a server. I connect to it and add a file or two then disconnect. I just got this message when connecting on a new machine: The authenticity of host 'mytestingserver.com ...
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0answers
56 views

Automate Interactive method of authentication for file transfer

Interactive method of authentication There is a server A and Server B Server A is the File Transfer server It has the files stored in it and we issue command scp admin@IP of REMOTE ...
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1answer
27 views

Unable to reinstall MSE or Forefront Protection on Windows 7 x86_64

One of the administrators in our company has recently had a trojan (Upatre.A), they managed to detect this with Microsoft Security Essentials and it told us it was removed. She continued to report her ...
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votes
2answers
46 views

How to stop Internet Explorer from blocking ActiveX controls on local files

Often, when I open HTML files on my C drive with Internet Explorer, I get a message saying that IE has blocked some ActiveX controls in the page. I then have to click a button to see the page. How can ...
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votes
2answers
54 views

TeamViewer wants a password for the Options dialog

I can login to my TeamViewer account but when I try to add a computer to the "Computers & Contacts" dialog I get a login prompt. This doesn't accept my account password. What other password is ...
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0answers
2 views

Mac Terminal Foreign Host-Name

When I was recently connected to a coffee shop wireless network using Terminal for some coding I saw a foreign "preface" (if that is the right word) before my username. Rather than Normal_Name:~ ...
0
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1answer
45 views

Access denied on a directory (my own): So locked down that everything fails from icacls to takeown

On my Windows 8.1 system, I have a folder called "D:\Benutzer\Alle\Musik" (I'm german, this is like Users/All/Music) which was linked to the Music library folder in windows. I decided to add my music ...
1
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1answer
61 views

Unable to read an email protected by Rights Management Service

My colleague received an email from H company. This email is protected by Microsoft Rights Management Service. His email client is Outlook Express, and he use POP3 to received it to local disk (the ...
33
votes
2answers
4k views

How come one user can delete another user's 755 files?

I have a backup upload script that scp’s files to another server using the user upload. Another script on the target server then chown’s these to another user and sets the file mode to 755. If I then ...
0
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1answer
51 views

Secure PHP in user directories

I'm a sysadmin for a small server at my university, which is used by students to experiment and run long jobs at their will. I enabled PHP in user directories so they could experiment with websites ...
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1answer
34 views

Block traffic to server based on known bad hosts list

there used to be a project like denyhosts that would block bad ips from reaching your server but as far as i understand that is now dead? ...
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0answers
15 views

Sudden SSL error while connecting to stackexchange [migrated]

I was surfing on stackexchange websites when I suddenly got the error message from Firefox about "Identity of this page could not verified" on all stackexchange sites. I had to confirm that I know ...
0
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0answers
35 views

Disable 'Windows Security' Dialog

In Windows XP can I disable the 'Windows 'Security Dialog box using regedit? Heres what it looks like: Regards, Snipe