The attacker will feed any personal information he has access to about the password creator into the password crackers. A good password cracker will test names and addresses from the address book, meaningful dates, and any other personal information it has. Postal codes are common appendages. If it can, the guesser will index the target hard drive and create a dictionary that includes every printable string, including deleted files. If you ever saved an e-mail with your password, or kept it in an obscure file somewhere, or if your program ever stored it in memory, this process will grab it. And it will speed the process of recovering your password.
For non-memorized passwords (something you must write down and physically secure), you are not optimizing for memorability. In this case, you can use your favored random-generator of choice, but choose an encoding that eliminates visual duplicates such as lowercase-L, uppercase-I, zero, uppercase-O and so on. You also should think about portability since one problem created by password policies is that they make it impossible for a user to use a single generation method (when, for example, one policy requires special-characters, while another prohibits them).
Actually you do have to hack in to get the password file. Without it, all you can do is connect from the outside and try a small number of passwords and guess at the accounts. It would be very unusual, I think, for anyone to be able to try all possible passwords that are four characters long if they had to open an ssh connection to the machine and try them by brute force.
I recently received a recommandation for setting my password to above 20 characters. The algorithm used for encryption is AES with a 256 bit primary key. How secure is a, let's say, 8 char password against brute force attacks for deciphering encrypted files?
Combining numbers and letters rather than sticking with one type of character dramatically enhances password security. A string of nine letters or numbers takes milliseconds to crack. Add a single letter, and your password may become cryptic enough to thwart password crackers for nearly four decades.
Combining several types of characters is an extremely effective way to make your password more cryptic. A simple, common word can be cracked in fractions of a millisecond. Inject a mix of lowercase and uppercase letters, numbers, and symbols (think @, %, and #), and your password can be secure for more than a decade.
ok im a novice user but i found the best solution for toshiba laptops with bios password set (and lost obiosly) what i did was remove the cmos battery and let it reset until it ask for the date and time again but very important step when the promp ask you reset defaults or or enter setup do alt ctrl delete and boot using a usb floppy drive with a windows 98 floppy and bingo good to go hope this information helps anyone out there with the same problem mssage me for any questions crazy thing is i tried everything hex floppy and parralel key all failed ..
hi i have few suggestions on all of these matters first of all bios password removing is almost impossible in most cases because we are not all expert programmer when i had a problem with one of the laptops i used a program called bios password remover had to be used on boot up which i think is the best way to crack a bios password but in one of the laptops it crashed it i took it to a repair shop they told me it is not fixable anymore then i took it home taken it a part i took out the processor chip and turn on the laptop it made few noises i turned it off and put back the processor chip back and turned it on again guess what no bios password and laptop is still working still i wont advice anyone to do all that unless you are willing to lose your laptop for good lets get back to the windows password there is few ways i know how to bypass that it is all tryed and tested on lots of laptops so i am talking from experience1.if you are worried about loosing your stuff on the hard disk take it of then plug it in external reader which costs around £8 pounds transfer all your files at another computer then put your hard drive back and install new windows on it here you go2. you can install windows vista if your system is capable vista keeps your files on place called an old windows get your files out re-format with any windows you want format all old windows so they dont keep extra space on your hard drive this works with windows 7 is welli hope this helps
Password Manager Pro Plugins for Chef and Puppet Introducing new plugins for Chef and Puppet CI/CD platform, in addition to Jenkins and Ansible. Both Chef and Puppet use the Master-Slave architecture, where communication happens via an SSL-based secure encrypted channel. Dedicated external app plugins are provided for both the plugins, so that the code pulls the passwords directly from Password Manager Pro during run time, instead of storing them as plain texts within script files. This combats security threats to resources, enhances the security of passwords and eliminates the need for users to modify the code when passwords are changed. The plugins thereby improve the overall security in organizations' DevOps pipeline and also impose consistent rotation and automatic update of the new passwords in the respective remote devices.
Most modern systems now store passwords in a hash. This means that even if you can get to the area or file that stores the password, what you get is an encrypted password. One approach to cracking this encryption is to take dictionary file and hash each word and compare it to the hashed password. This is very time- and CPU-intensive. A faster approach is to take a table with all the words in the dictionary already hashed and compare the hash from the password file to your list of hashes. If there is a match, you now know the password.
Brute force is the most time consuming approach to password cracking. It should always be your last resort. Brute force password cracking attempts all possibilities of all the letters, number, special characters that might be combined for a password and attempts them. As you might expect, the more computing horsepower you have, the more successful you will be with this approach.
One of the beauties of this tool is its built in default password cracking strategy. First, attempts a dictionary attack and if that fails, it then attempts to use combined dictionary words, then tries a hybrid attack of dictionary words with special characters and numbers and only if all those fail will it resort to a brute force.
L0phtCrack is an alternative to Ophcrack, and attempts to crack Windows passwords from hashes in the SAM file or the Active Directory (AD). It also uses dictionary and brute force attacks for generating and guessing passwords.
L0phtCrack was acquired by Symantec and they promptly discontinued it in 2006. Later, L0phtCrack developers re-acquired this excellent password cracking tool and re-released it in 2009. You can download the tool here.
Cain and Abel can crack passwords using a dictionary attack, rainbow attack, and brute force. One of its better features is the ability to select the password length and character set when attempting a brute force attack. And besides being an excellent password cracking tool, it is also a great ARP Poisoning and MiTM tool.
A new ransomware called CryptoHost was discovered by security researcher Jack that states that it encrypts your data and then demands a ransom of .33 bitcoins or approximately 140 USD to get your files back. In reality, though, your data is not encrypted, but rather copied into a password protected RAR archive . Thankfully, the password created by this infection is easily discovered so infected users can get their files back. This infection is currently being detected as Ransom:MSIL/Manamecrypt.A and Ransom_CRYPTOHOST.A.
When CryptoHost infects your computer it will move certain data files, which is detailed in the technical analysis below, into a password protected RAR archive located in the C:\Users\[username]\AppData\Roaming folder. This file will have a 41 character name and no extension. An example file is 3854DE6500C05ADAA539579617EA3725BAAE2C57. The password for this archive is the name of the archive combined with the logged in user name. So for example, if the name of the user is Test and the RAR archive is located at C:\Users\Test\AppData\Roaming\3854DE6500C05ADAA539579617EA3725BAAE2C57, the password would be 3854DE6500C05ADAA539579617EA3725BAAE2C57Test.
When the 7-Zip prompts you for the password, enter the password as described above and press enter. You data will now be extracted into a folder name that is the same name as the RAR archive. When done, open that folder and copy all of the folders in it to the root of your C: drive. Your data files should now be restored.
xkcd's password generation scheme requires the user to have a list of 2048 common words (log2(2048) = 11). For any attack we must assume that the attacker knows our password generation algorithm, but not the exact password. In this case the attacker knows the 2048 words, and knows that we selected 4 words, but not which words. The number of combinations of 4 words from this list of words is (211)4 = 244, i.e. 44 bits. For comparison, the entropy offered by Diceware's 7776 word list is 13 bits per word. If the attacker doesn't know the algorithm used, and only knows that lowercase letters are selected, the "common words" password would take even longer to crack than depicted. 25 random lowercase characters would have 117 bits of entropy, vs 44 bits for the common words list.
Sometimes this is not possible. (I'm looking at you, local banks with 8-12 character passwords and PayPal) If I can, I use a full sentence. A compound sentence for the important stuff. This adds the capitalization, punctuation and possibly the use of numbers while it's even easier to remember then Randall's scheme. I think it might help against the keyloggers too, if your browser/application autofills the username filed, because you password doesn't stand out from the feed with being gibberish. 220.127.116.11 09:01, 30 August 2013 (UTC) 2b1af7f3a8