Most reported breaches are in North America, at least in part because of relatively strict disclosure laws in North American countries. It is estimated that the average cost of a data breach will be over $150 million by 2020, with the global annual cost forecast to be $2.1 trillion.[1][2] As a result of data breaches, it is estimated that in first half of 2018 alone, about 4.5 billion records were exposed.[3] In 2019, a collection of 2.7 billion identity records, consisting of 774 million unique email addresses and 21 million unique passwords, was posted on the web for sale.[4]
Hi Tyler,Try making up your own hashes file for easy passwords like password, password123. Then run hashcat against these easy passwords to get a feel for how the system works.Use the MD5 hashes from to create your md5 hashes file.Go for a nice easy attack, such as the straight thru attackhashcat -m 0 -a 0 hashes.txt rockyou.txt-m 0 = md5 hashes-a 0 = straight through attack
password txt rar for wifi password hacker 2013
Microsoft Office files can be password-protected in order to prevent tampering and ensure data integrity. But password-protected documents from earlier versions of Office are susceptible to having their hashes extracted with a simple program called office2john. Those extracted hashes can then be cracked using John the Ripper and Hashcat.
Extracting the hash from a password-protected Microsoft Office file takes only a few seconds with the office2john tool. While the encryption standard across different Office products fluctuated throughout the years, none of them can stand up to office2john's hash-stealing abilities.
This tool is written in Python and can be run right from the terminal. As for Office compatibility, it's known to work on any password-protected file from Word, Excel, PowerPoint, OneNote, Project, Access, and Outlook that was created using Office 97, Office 2000, Office XP, Office 2003, Office 2007, Office 2010, and Office 2013, including the Office for Mac versions. It may not work on newer versions of Office, though, we saved a DOCX in Office 2016 that was labeled as Office 2013.
Next, we need an appropriate file to test this on. I am using a simple DOCX file named "dummy.docx" that I created and password-protected with Word 2007. Download it to follow along. The password is "password123" as you'll find out. You can also download documents made with Word 2010 and Word 2016 (that shows up as 2013) to use for more examples. Passwords for those are also "password123."
Set the --wordlist flag with the location of your favorite word list. The one that is included with Nmap will do for our purposes here, but for tougher passwords, you may want to go with a more extensive word list.
John will start cracking, and depending on the password complexity, will finish when a match is found. Press almost any key to view the current status. When the hash is cracked, a message will be displayed on-screen with the document's password: Since our password was pretty simple, it only took seconds to crack it.
When it comes to password cracking of any kind, the best defense technique is to use password best practices. This means using unique passwords that are long and not easily guessable. It helps to utilize a combination of upper and lowercase letters, numbers, and symbols, although recent research has shown that simply using long phrases with high entropy is superior. Even better are long, randomly generated passwords which makes cracking them nearly impossible.
Today, we learned that password-protected Microsoft Office files are not quite as secure as one would be led to believe. We used a tool called office2john to extract the hash of a DOCX file, and then cracked that hash using John the Ripper and Hashcat. These types of files are still commonly used today, so if you come across one that has a password on it, rest easy knowing that there is a way to crack it.
There are 6.63 quadrillion possible 8 character passwords that could be generated using the 94 numbers, letters, and symbols that can be typed on my keyboard. I'm skeptical that that many password combinations could actually be tested. Is it really possible to test that many possibilities in a less than a year in this day and age?
As per this link, with speed of 1,000,000,000 Passwords/sec, cracking a 8 character password composed using 96 characters takes 83.5 days. Research presented at Password^12 in Norway shows that 8 character NTLM passwords are no longer safe. They can be cracked in 6 hours on machine which cost $8000 in 2012.
One important thing to consider is which algorithm is used to create these hashes (assuming you are talking about hashed passwords). If some computationally intensive algorithm is used, then the rate of password cracking can be reduced significantly. In the link above, author highlights that "the new cluster, even with its four-fold increase in speed, can make only 71,000 guesses against Bcrypt and 364,000 guesses against SHA512crypt."
Suppose your set of 'obtained' hashes contained 5 million password hashes, then even for the 98 year WiFi case, 145 keys will be found on day 1 (on average). If your password is amongst them, then you experience that also for the WiFi case it is indeed possible!.... if my calculations are right
I know of one modest demonstration (Feb 2012, link) that claimed the power to make 400 billion guesses a second on a 25 GPU system. In that case, an 8 digit password would be blown in less than 6 hours; sooner depending on the brute-force method. But that assumes the attacker has access to the file that stores the encrypted password. And frankly, that is easy to do, if you have access to the computer itself. Even if you can't get to the HDD, the attacker would simply replace the keyboard with a computer that would send 'keystrokes' much faster than you could type. It might take longer, due to the speed of the USB connection, but human typing rate is not a good reference on this matter.
On the issue of characters used in a password, this is not quite as simple as most people state. What matters most is what the attacker expects to have to tried, not what characters you chose. In other words, what matters most is what characters EVERYONE in the system uses, not just you. For example, a random sequence of 'X', 'Y' and 'Z' is just as hard to guess as a random sequence of all letters of the alphabet...as long as the attackers doesn't know you prefer X, Y, and Z. But if, despite the availability of 100 digits, it is known to the attacker that everyone is using only X, Y and Z, then the attacker can narrow down the brute-force attack and negate the benefit of 100 digit security system. The principal of this is identical to that of the dictionary attack. This is why sysadmins might force everyone to use different character types; to make sure that a would-be intruder has to try all permutations.
This is not to say the specific characters used in a password don't affect the speed at which it is broken. That is, when someone says "an 8 digit passwords take 10 years break," that 10 years is the MAXIMUM time required. A more accurate statement would be, "it takes 10 years to test all combination of 8 digit passwords." But the fact is that some passwords would be guessed much faster depending on the character selection and attack method. For example, if your password 100-character alphanumeric system (e.g. 0-9......A-Z), and the brute-force attack uses sequential guesses, then a password starting with a '0' will be broken at least 100x faster than a password that starts with LAST character in that sequence (let's call it 'Z'). But this is tricky to deal with since you can never know what order the attacker may use. For example, does the attacker consider A or 0 the first digit? And is Z or 9 the last digit? Or if the attacker knows that everyone uses passwords that starts with characters towards the end of the alphabet, then he/she may try brute-force in reverse-sequence, and the password that starts with '0' will be safer.
So why are people still talking about brute force? Reason is that for applying a brute force technique you do not need any special thinking, and the amount of people capable of running a brute force technique is probably 10 times bigger than the amount of those who can download a cracking tool from the internet and really use it for cracking password.
Another reason is that if I had chosen a hard 8 character password like j$d1Ya+3 the "smart" techniques are not going to help much, so some folks do want to understand how long will it take the brute force to work.
Unfortunately, some companies still store actual text passwords in their databases instead of the hashes so if a hacker gets into the system, he now has more base words to add to his roster. So if you use the same password, or even base word, for two accounts and one of those is compromised, no matter how long or random it is, that hash and password are now known. The hacker can then log in to any account that you are using the same password for. This also means that if someone else uses your password, or some version of it as outlined above, you are compromised.
The database was analyzed recently based on the properties of the encryption scheme. -group.com/files/adobe-top100.txt contains the results of the analysis: the top 100 frequently used encrypted passworts and the most probable guesses for the raw password.Press write-up is also available on the research: -how-bad-are-the-top-100-passwords-from-the-adobe-hack-hint-think-really-really-bad-7000022782/
We were however curious about the passwords chosen by Hungarians. In the Adobe leak, there are 209 125 email addresses with .hu CCTLD domain name. By the same way how the previous research was carried out, we created a list of most frequent passwords among this 200 thousands of users and tried to pinpoint the most likely cleartext password based on the password hint information and email addresses. 2ff7e9595c
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