A security mechanism which enforces policy describing which requesters may perform operations on specified objects. There are typically multiple types of operations. Common operations include: read, write, execute, append, create, and delete.

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50
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4answers
7k views

Are there DRM techniques to effectively prevent pirating?

A question on Skeptics.SE asks whether current DRM techniques effectively prevent pirating: Is DRM effective? The question for IT Security is: Can DRM be made effective, and are there any examples? ...
30
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20answers
5k views

How can I prevent my kids from bypassing my computer restrictions?

My son has a downloaded copy of Ubuntu that he uses to "break" into my computer, bypassing Vista. I have two questions: Can this damage my computer or corrupt my files? (I have lots of pictures) Is ...
38
votes
1answer
31k views

What is the difference between RBAC and DAC/ACL?

What are the benefits of each, and when should I choose one over the other? Are there situations where these should be merged? Do you have examples of common usages? And what about MAC, where ...
20
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5answers
119k views

Can someone steal money from my bank account if they know my IBAN and personal details?

To deposit money into your account, some websites require that you provide them with a lot of details about your bank account: name, complete address and IBAN which includes your account number and ...
24
votes
11answers
18k views

Prevent my site from being copied

Is it possible to protect my site from HTTrack Website Copier or any similar program? Without setting a max number of HTTP request from users.
10
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2answers
447 views

How is UAC a security improvement?

What does User Account Control on Windows offer in terms of security? It's just an extra click to potentially run a virus.
6
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5answers
18k views

How to prevent restrict access to a web application to authorized devices only?

I have developed an MVC web app. Right now, the client using this app in office area. The client has requested that no one should use this app on any device except the office's PC/tablets. Now ...
6
votes
4answers
511 views

Are there a standard method(s) for me to give someone else read-only access to my data?

Are there a standard method(s) for me to give someone else read-only access to my data? There are several situations where I may want to give a few people read-only access to some data, but I would ...
59
votes
8answers
13k views

Risks of giving developers admin rights to their own PCs

I need to convince my internal IT department to give my new team of developers admin rights to our own PCs. They seem to think this will create some security risk to the network. Can anyone explain ...
47
votes
5answers
6k views

How does a country block its citizens from accessing a site?

Following Turkey's recent social site blocks, I am wondering how can you efficiently accomplish that as a country. Similar for a big company. Blocking IPs → easy to circumvent, (proxys, tunnels, etc)...
16
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4answers
4k views

Role Based Access Control + Data Ownership based permissions

Is there a common system or pattern that combines the permissions given by a role in a RBAC-system with permissions in relation to dataownership? For example: Bob is a doctor and has the role ...
26
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5answers
12k views

Comparsion Between AppArmor and Selinux

I was reviewing several different comparison of AppArmor and Selinux which include Why I Like AppArmor More Than SELinux SELinux and AppArmor: An Introductory Comparison From these articles I ...
51
votes
8answers
4k views

I'm an IT consultant. Should I discourage a client from telling me his password?

I'm an IT consultant. One client has known me for a few years. He wants me to do some work on his kids' laptop again. I'll need to log into his kids' Windows user account. (I'm guessing that multiple ...
10
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2answers
3k views

What's the difference between an access control method, security model, and security policy?

(I should apologize in advance because this question is going to be messy -- I'll try to refine it as the subject becomes more clear to me). I'm studying for the CISSP exam and I'm getting confused ...
8
votes
3answers
2k views

Practical non-government uses of Biba, Bell-LaPadula, etc. models

For example, the Biba model is now hanging out in current versions of Windows. Things downloaded from the Internet are tagged as such. Internet (low) stuff can't alter user (medium) stuff which isn't ...
15
votes
2answers
1k views

Network policies under AppArmor/SELinux

I am attempting to sandbox some untrusted processes using Linux's MAC frameworks -- either SELinux or AppArmor. I see that both SELinux and AppArmor allow the selected granting of socket level access ...
8
votes
2answers
2k views

How do I log everything a certain program is doing?

i have a program which is pretty simple. Its just a simple login form. Is there any possibility to log what this program is doing (maybe which file he is accessing and which website he is visiting (...
10
votes
1answer
1k views

How to prepare for protecting identity after death?

In the context of online accounts and identities, what are some best practices to prepare for the one certainty we all face: not a one of us will get out alive.
9
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2answers
3k views

Claim Based Authorization vs Attribute Based Access Control

Is there a difference between Attribute Based Access Control which is usually associated with XACML and Claim Based Authorization which seems to be a term coined by Microsoft? Is the latter simply ...
8
votes
2answers
10k views

Securing remotely accessible IP cameras that do not support HTTPS

I have some IP cameras set up on my home network, which is WPA2 protected. These cameras are setup to be accessible from the Internet thru my router's DDNS address, and port number. So for example, ...
7
votes
2answers
2k views

Breaking out of a strict linux sandbox running virtually under windows: do the linux-sandbox access control policies even matter?

I am developing an application which will run untrusted code. I have been designing it for linux, thinking that I can just run it in a virtual machine on windows when the need arises. The linux ...
3
votes
4answers
393 views

Help to account all the points of physical access to a rack server to steal software

Let's say I want to move my 1U Dell server to co-location site with a hostile company who will try to steal my code (this is almost 90% probability if I dont take steps)... The limitation for their ...
2
votes
2answers
2k views

How to use 'key material' so that multiple people can access protected files?

I'm not sure if this is the right SE to ask this question, but it seems more I have a database of files that needs to be encrypted such that multiple people with different passwords/logins to this ...
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2answers
417 views

Isolating guest networks

I'm setting up a secondary guest wifi on my router and I want to make sure that it's impossible for clients connected to the guest wifi to access my primary network. Initially, I used IP filtering ...
1
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1answer
412 views

Can HIPS software practically be considered a form of MAC

Host Intrusion Prevention Software can restrict applications from taking certain actions regardless if they have the privileged to do so as assigned by the operating system. Given that with the use ...
7
votes
2answers
3k views

Bell-LaPadula and Biba Together

Theoretically, could the Bell-Lapaluda security model be implemented with the Biba integrity model in an Operating System? Or do are they mutually exclusive? [Edit: Follow up from this question on ...
4
votes
5answers
5k views

Is it possible to restrict USB keys to only certified ones, and block that key's access on other computers

I am working on security for an organisation, we have purchased some encrypted USB keys but wanted to stop any employees leaking data. is there any way to stop their laptop accepting any key but the ...
4
votes
1answer
1k views

Covert Channels Exploit and the Bell-LaPadula MAC Model

I'm wrapping my head around Mandatory Access Control (MAC) and the well-known Bell-LaPadula model. One limitation that is mentioned with this model is covert channel exploitation. The one example I ...
3
votes
1answer
58 views

Access via link in Email - How can I make this most secure?

I need your professional opinion on this matter, please. The app I'm building has 2 parts: Teachers & students. Teachers use the app to build a project and attach students to it. Then, the ...
1
vote
1answer
1k views

Possible to limit server connections to clients with a specific certificate?

Usually when I read about SSL and HTTP it says that the certificate is set up to authenticate that the host is who it says it is. Is it possible to configure the host to prevent it from processing ...
1
vote
2answers
247 views

Is a long, random string in a URL considered adequate protection from unauthorised access? [duplicate]

I have recently had to submit a number of confidential PDF documents to a website. These documents contain more than enough information to use in identity theft, and I can conceive how others using ...
0
votes
3answers
252 views

Using remote desktop

I was having trouble getting Outlook to work with my schools email account and called the help desk. They gave me a link to install a program called Bomgar. I installed it and clicked "allow viewing ...
0
votes
1answer
75 views

Locking down Amazon RDS table data

We are using MySQL Amazon RDS. The instance is encrypted, and also only available via SSH from the production server EC2 instance. One of the things we are trying to do is give access to some ...