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Computer Security
Computer security is the prevention/detection of, and response to, any unauthorized actions by users of a computer system. Questions about security practices and principles belong here.
1,022 Questions
Who are the goons that attend defcon?
The goons- British radio comedy programme that was produced by BBC home service from 1951-1960.
Why does the websites you go to say the page is not responding?
Usually, this error means one of two things:
- Your computer is not connected to the Internet
- The server the website is hosted on is not responding. This might be because the server is 'down' (not connected to the Internet).
What is a firewall access control list?
A control list of your firewall that you can access.
answer #2
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an access control list is a set of rules that are compared to each incoming or outgoing packet or access to determine if they are allowed to pass. The rules have different formats depending on the manufacture but they do the same thing. For example a rule may say drop all packets to port external port 155, or drop all web requests from the inside to a particular web site. In a properly configured firewall all traffic is blocked unless it matches a specific rule, this prevents an application (like a virus) using an oddball port to communicate and download more dangerous software. When a new virus is discovered one way to prevent its spread is publicize the ports it uses so they can be at least monitored if not blocked entirely.
What does CIA stand for in terms of computer security?
A simple but widely-applicable security model is the CIA triad; standing for Confidentiality, Integrity and Availability; three key principles which should be guaranteed in any kind of secure system. This principle is applicable across the whole subject of Security Analysis, from access to a user's internet history to security of encrypted data across the internet. If any one of the three can be breached it can have serious consequences for the parties concerned.
What is the master password of folder lock 7?
The Master Password for Folder Locker 7.0 is the Registration Key given at the time of registration.
Do you need a separate phone line for dsl if your security system uses your phone line?
ADSL needs to be filtered and so does ALL other equipment on the line. This includes any alarm equipment (red care for example). Red care does work with ADSL but most alarm companies recommend a dedicated line.
Serial for F-Secure Internet Security 2010?
what is the serial key for f secure internet security 2010 for atleast 0ne year ????
MD5 password scrambler used to be secure but now is no longer secure.
Why it's important to not have junk email and spam?
Why too waste your space on junk and spam which have no meaning and may contain inappropiate content.better to delete them rather than keeping.
What if remote Desktop is checked in Windows Firewarll?
This generally should not be a problem. This setting is, I believe, default.
However, if you do not use Remote Desktop, I would suggest unchecking that option, to make your computer just a little bit more secure. The choice is yours.
Why Is FAT32 less secure than NTFS?
FAT32 is an old file system that is simple, well-documented, readable from a large number of OSs, and supported by a wide range of tools.
NTFS is a newer file system that is feature-rich, proprietary, undocumented at the raw bytes level, and subject to change - even within Service Packs of the same OS version.
You are obliged to use FATxx if you need access from DOS mode or Win9x, e.g. in a dual-boot scenario.
You are obliged to use NTFS if you need support for files over 4G in size, hard drives over 137G in size, and/or you need to implement some of NT's security management that devolves down to NTFS.
NTFS may be safer...
- transaction rollback cleanly undoes interrupted operations
- file-level permissions can protect data against malware etc.
- automatically "fixes" failing clusters on the fly (controversial)
...or more at risk...
- no interactive file system checker (a la Scandisk) for NTFS
- no maintenance OS for NTFS
- malware can drill right through NTFS protection, e.g. Witty
- transaction rollback does not preserve user data
- transaction rollback does not help other causes of corruption
- more limited range of maintenance tools
- automatically "fixes" failing clusters on the fly (controversial)
How do you remove S-1-5-21-823518204 from recycler?
The directory S-1-5-21.... is a default directory when you create an account (for your PC) in a network. It mean you can not delete files in the directory and itself. And virus found that directory is a ideal place to stay in. If your anti-virus programme found viruses in the directory: Turn off your PC. Reboot in DOS (with Hirent Boot CD...), use Volkov Commander to find and delete all files in this directory (include virus files). Otherwise you can reinstall Windows on your PC. contact me at: galabaco@yahoo.com
What is a different between apn and vpn?
An APN (Access Point Name) is a configuration setting on a mobile device (such as a phone) that defines the network that a mobile device connects to. On a mobile network (GSM) there are multiple APNs which provide access to different networks such as the Internet, a 'walled garden' in the operator and also private links to company networks.
APN settings include the name (apn.operator.com) and user credentials (username/password).
A VPN (Virtual Private Network) provides an encrypted link between two points. The linkj is encrypted to ensure the security of the traffic over public networks such as the Internet. There are many ways of implementing a VPN - using routers to create site-to-site links or linking a PC to a company network.
Hope this explains it.
What do some parents use as passwords?
The name of your school
Your mom's name and your fathers name
One of their kid's names
Their last name
Their maiden name (if its your mom)
But you shouldn't be trying to find this out
Captures traffic and analyzes frames?
What you are describing there sounds like packet inspection, which is normally performed by a firewall, IDS or IPS.
What are the difference between piracy and privacy?
Piracy and privacy are two different terms with two different meanings. Let say if you want to keep any thing secret , it is called privacy. If you are copying files that have copyrights or are paid , it is called piracy.
Python is a programming language. www.python.org 2.2.3 is just a version of it, albeit a very old version.
Which concept is related to defining protocols that control access to network resources?
Type your answer here... NAC
Answer Explanation: Network Access Control (NAC) is a concept that uses policies to enforce controls that dictate object access within a network. NAC applications can be configured to test a system in order to verify that it adheres to company policies, such as confirming that system patch levels and antivirus software are up to date. If the system does not adhere to the policies configured, it can prevent the system from accessing the network, or it can provide limited access until the system complies with the policies.
Why public key criptography requires longer keys than single key cryptography?
The answer is actually in the question.
First, you need to understand what happens with public key cryptography (asynchronous). In essence you use public keys to initiate a secure channel, by which to pass a "single" or more properly stated, synchronous key. The operation to encrypt with the large asynchronous key is very expensive (from a computation time perspective), so you only use that to encrypt the synchronous key, then you encrypt the actual data with this synchronous key.
The reason that synchronous keys are shorter is because (if you are being secure) the synchronous keys are transfered in a secure manner. For example, either by passing it to someone in person, or over a channel that is secure.
An asynchronous key is not transfered via a secure method, it is transfered in the clear. To really understand how this all works, you need to look into a Diffie Hellman key exchange. A public key is really just a really big prime number put through some sort of algorithm. If we use multiplication as an example we can say, you take one huge prime number and multiply it by another huge prime number. This operation is easy to do, but very hard to undo without one of the numbers. The magic of how to get to secret numbers by transferring (in the clear) non secret numbers is what Diffie Hellman key exchange is all about.
So I guess the short and sweet answer to your question is:
Asynchronous keys are longer then synchronous keys because synchronous keys are only meant to be transfered via a secure channel. Asynchronous keys are transfered via insecure channels and must be longer to get an appropriately sized number to prevent factorization.
How do you make window malware protection detect kaspersky antivirus?
My best take to prevent it this is, AVG.
AVG is one of the world's most recognizable names in online threat protection with more than 200 million active users counting on AVG every day for their protection, performance, and privacy. Safely surf, email, shop, bank, use social media online & more!
Try this link to get some promos!
ht tps:/ / yazing. com / deals / avg / HusainiYusoff (Just delete the spaces in beween)
There is also another that you might want to consider also. I'm sure we heard about norton.
Norton is the leader in security software for your computer with more PC Magazine Editor's choice awards than any other security company. Start a free trial and protect your PC today.
Here is the url for your to get your free trial!
ht tps:/ /yazing. com/deals/norton. com/HusainiYusoff (Just delete the spaces in between)
In what situation might a blank password be better than an easy to guess password?
Using a blank password (or no password at all) makes your computer more secure because Windows XP/Vista accounts, that are not protected by a password, cannot be accessed remotely over the network or the Internet.
Password guessing tools are examples of what?
They are an example of pharming, or the act of generating codes to fit a situation. It is frequently illegal, as pharming is used to crack codes and therefore 'black hat' hacking, or hacking for malicious reasons.
You can still get popups with or without a virus. In other words, Incognito mode is just as dangerous as "regular" Google Chrome.
What are the two principle requirements for the secure use of symmetric encryption?
Secure symmetric encryption requires that the required encryption key(s) be delivered to each authorized party securely. This may require out-of-band delivery of the key(s). Whatever the method of delivery, it needs to be secure.
It is also necessary to use keys and algorithms that cannot be broken without expending more resources than the value of the information being protected.
