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Hacker, Hack Thyself

blog.codinghorror.com

21–30 of 114 posts

Re: Hacker, Hack Thyself

#21
post #7

I saw a very interesting talk last year from someone who, as part of a company's security team, had set up a system that continually attacked the hashes of every employee's Active Directory passwords. If one was cracked, the employee would receive an automated email with a note containing the last few characters of their password and a suggestion to change it. I recall they also spoke on some security aspects of the…

I used to work at a University in the UK. One of my responsibilities was the email system. We constantly suffered targeted phishing attacks where the sender pretended to be from the IT department and required the recipient to respond with their password, for various made up reasons. Our spam filters captured most of these on the way in, but some still got through. And people replied. People replied all the time. Stud…

Interesting!

Did you consider regularly sending phishing emails yourself, and automatically call out anyone who reply anything at all to them? I mean, you won't catch quite as many people, but eventually most will learn, one would think.

Re: Hacker, Hack Thyself

#22

I built my latest application using Amazon Cognito for user management. My application and database don't ever know anything about the passwords. Amazon's problem.

Considering OneLogin's current events I'm not sure if this approach is more secure or a good solution. ( https://techcrunch.com/2017/06/01/onelogin-admits-recent-bre... )

You have two choices: try and do it on your own, or delegate to someone who you think can do it better. There are risks either way. Considering how much data Amazon has, they probably invest significantly more than you (or OneLogin) on security.

Re: Hacker, Hack Thyself

#23
post #7

I saw a very interesting talk last year from someone who, as part of a company's security team, had set up a system that continually attacked the hashes of every employee's Active Directory passwords. If one was cracked, the employee would receive an automated email with a note containing the last few characters of their password and a suggestion to change it. I recall they also spoke on some security aspects of the…

Where you use this is important, too. Accounts that can provide remote access or admin rights should be scrutinized heavily, whereas an office temp with an email address (and no access from the outside world) isn't much of a threat.

Not true. When that email address gets broken into, it'll get used to send spam, making your mail server a spam source, and making it harder for all the rest of your mail to reach people's inboxes.

Not to mention producing more spam for the rest of us.

Re: Hacker, Hack Thyself

#24

I'm comfortable using passwords But those are bad comparisons. A key and lock is an asynchronous single use authentication+authorization mechanism. Passwords are just the authentication part, so trying to replace these just requires we have a secure way to authenticate ourselves. We have the benefit that we are using digital systems, so our authentication can be digital, too. We can also rely on multiple factors to i…

It's a lot easier than all of that. New two-factor authentication standards like U2F achieves most of that with just a simple, inexpensive hardware token.

Re: Hacker, Hack Thyself

#25
post #7

I saw a very interesting talk last year from someone who, as part of a company's security team, had set up a system that continually attacked the hashes of every employee's Active Directory passwords. If one was cracked, the employee would receive an automated email with a note containing the last few characters of their password and a suggestion to change it. I recall they also spoke on some security aspects of the…

I used to work at a University in the UK. One of my responsibilities was the email system. We constantly suffered targeted phishing attacks where the sender pretended to be from the IT department and required the recipient to respond with their password, for various made up reasons. Our spam filters captured most of these on the way in, but some still got through. And people replied. People replied all the time. Stud…

This is brilliant.

Re: Hacker, Hack Thyself

#26
post #7

I saw a very interesting talk last year from someone who, as part of a company's security team, had set up a system that continually attacked the hashes of every employee's Active Directory passwords. If one was cracked, the employee would receive an automated email with a note containing the last few characters of their password and a suggestion to change it. I recall they also spoke on some security aspects of the…

I used to work at a University in the UK. One of my responsibilities was the email system. We constantly suffered targeted phishing attacks where the sender pretended to be from the IT department and required the recipient to respond with their password, for various made up reasons. Our spam filters captured most of these on the way in, but some still got through. And people replied. People replied all the time. Stud…

Nice to see that your second solution doesn't require passwords to conform to a format to work.

Re: Hacker, Hack Thyself

#27
post #16

What this shows is that even with best practices passwords are a fairly weak security control. We need a standardised second factor id. The FCC or corresponding body elsewhere should mandate that phone networks and phones support a secure messenging protocol which could guarantee that a message could be sent to a phone number and only be received by that device. Password-only authentication is like locks on luggage,…

Well, between Google authenticator (and apps like it) and keybase, it seems pretty much covered.

Re: Hacker, Hack Thyself

#28
post #15

Suuuper nitpicky, but in the paragraph directly below Dark Helmet, Jeff calls his Graphics Card a 1080 GTX Ti. The GTX goes in front of 1080, since GTX is the general product line.

You are correct. It is a mistake. It's also confusing naming, because not too long ago, nVidia named their cards with GT and GTX as a suffix, such as the GeForce 8800/9800 GT and GTX.

Once they run out of numbers again maybe they'll turn it into an infix? Looking forward to the Nvidia 48GTX70!

Re: Hacker, Hack Thyself

#29
post #16

What this shows is that even with best practices passwords are a fairly weak security control. We need a standardised second factor id. The FCC or corresponding body elsewhere should mandate that phone networks and phones support a secure messenging protocol which could guarantee that a message could be sent to a phone number and only be received by that device. Password-only authentication is like locks on luggage,…

Steve Gibson's SQRL project is pretty interesting. Right now I use TOTP whenever possible, but I think SQRL looks promising.

Re: Hacker, Hack Thyself

#30
post #7

I saw a very interesting talk last year from someone who, as part of a company's security team, had set up a system that continually attacked the hashes of every employee's Active Directory passwords. If one was cracked, the employee would receive an automated email with a note containing the last few characters of their password and a suggestion to change it. I recall they also spoke on some security aspects of the…

> who, as part of a company's security team, had set up a system that continually attacked the hashes of every employee's Active Directory passwords.

On the other hand of you are not part of the security team something like this can get you in some real trouble. Don't do it at home kids!

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