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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
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.
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.
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)
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.
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.
Encryption is used so that specific people, who have the key to the encryption, can read a given message, but other people who don't have the key can't read it. Sensitive information can thereby be sent to specific people while being concealed from the general public who might misuse it.
I can't access Facebook due to hackers attacking my email address?
Change your email address password to make it more secure, or send a request for help to facebook directly.
What malware types can scan the Internet for victims?
Well, I'm not really sure what you're asking, but I'll try to help!
As you probably know, there are many different kinds of malware out there; viruses, rootkits, botkits, trojans, spyware, adware, bloatware, etc.
To avoid infection:
1. Ensure you have an active antivirus and firewall running
2. Avoid opening suspicious files, email attachments, URLs (website links, especially true if it's from someone you don't know), and downloading the above mentioned items
3. If you are really paranoid about online privacy(like me), I recommend using Chrome or Firefox if you don't already, installing Albine's extension "Do Not Track Plus" (which stops tracking cookies from collecting your browsing history), and for good measure, I recently installed Keyscrambler and moved the system tray icon so that I could see it's working (it may install an addon, but I disabled that)
How can I change my user name and password on my computer when some one else changed it on me?
You can't. Go to a computer fixing shop or consult a hacker friend.
What is primary goal of a rootkit?
It's used to try and hide or obscure the fact that a system has been compromised or hacked.
Is there a way to password protect a pen drive so nobody can open it without the password?
For Windows Vista and Windows 7
- Insert your pen drive which you want to password protect.
- Click start and open Control Panel.
- (Quick start : To skip the next three steps type BitLocker in the search box and hit enter.)
- Go to System and Security > BitLocker Drive Encryption.
- Find your pen drive listed amongst all the drives.
- Turn on Bitlocker for your pen drive. System will few seconds to turn this feature on.
- A window will open in front of you asking your desired password which you want to keep for your pen drive. Click next when you done with setting up the password.
- Store your recovery key at your desired place. Click next to continue. Recovery key can be used if in case you forget your set password.
- System will ask you to start encryption for your pen drive. Encryption will take some time.
- Once the encryption is over you will see a lock symbol on your pen drive icon.
- Remove the pen drive and re-insert it. System will ask you to enter the password to access the data.
Is it illegal to copy the product key for a software from the internet and use it?
how can u settle ilegaly using a copy write
Are spam and hoaxes a part of Denial of Service attack?
increased non subjective emails ( e mail bombs) are the part of DDoS,
A "denial-of-service" attack is characterized by an explicit attempt by attackers to prevent legitimate users of a service from using that service
which can rasie frequent mails like above one!
A DoS attack may include execution of
