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Don't use 1234 as your password

nortonwang.com

41–50 of 56 posts

Re: Don't use 1234 as your password

#41
post #35
post #15

Earlier quoted context omitted.

If you still had access today, it would be a perfect platform for Bitcoin mining.

Did you not see those specs? Or is it that for some strange quirk of something my Iris is a great money making machine?

Well if you're not paying for it, it's still 100% profit :)

Re: Don't use 1234 as your password

#43

Alright, I'll bite. Why did the attacker mine primecoin (rather than bitcoin, or any of a dozen other cryptocurrencies)?

Because primecoin is easier to mine because of the difficulty rate

More precisely, Bitcoin mining is dominated by specialized hardware (ASICs), so non-specialized computers have almost zero impact or revenue potential in the Bitcoin network. Litecoin and Primecoin are less ASIC-friendly, so ordinary computers stand a better chance at actually finding a block because they don't have the massively overpowered competition.

Re: Don't use 1234 as your password

#45

I found a 68K SGI Iris 2400 machine up and running in college in about 2004. It had a sticker with the hostname on it. Later on that week, I went to the department homepage, got the staff roster and tried to guess the usernames. I telnetted to port 25 and tried RCPT TO hypothesized names, like so $ telnet host 25 MAIL FROM: a@a.com 250 Sender OK RCPT TO: afranks 550 Recipient not found RCPT TO: arty.franks 250 Recipi…

We had a presentation given to us by the head of school on the last day of term prior to exams. He walked to the front, turned on the projector, and while chatting entered his username and password. He didn't hit enter or tab - instead he entered his username and password in the username field. Out of an auditorium of a few hundred I did a quick scan. No one appeared to have noticed - I'd have expected a few pens to be out. There was a folder on his desktop called "moderated exam papers" or similar. It was amazing.

Re: Don't use 1234 as your password

#47
post #33

Why not disable password logins completely, use PKI for all connections, and while we're at it, restrict logins to known hosts? Also, don't use passwordless keys. Then there's moving sshd off of port 22 to provide some obscurity. Yada yada yada... How many times will we have to go over this subject?

Is there any way server-side to determine if a key is passwordless or not?

Re: Don't use 1234 as your password

#48

Earlier quoted context omitted.

Because primecoin is easier to mine because of the difficulty rate

More precisely, Bitcoin mining is dominated by specialized hardware (ASICs), so non-specialized computers have almost zero impact or revenue potential in the Bitcoin network. Litecoin and Primecoin are less ASIC-friendly, so ordinary computers stand a better chance at actually finding a block because they don't have the massively overpowered competition.

I guess the better question is why not Litecoin.

Or if you're going for something really obscure, why not Junkcoin?

I guess PrimeCoin is in 6th in capitalization... maybe it's in that sweet spot of not overly competitive but still capable of retaining some value: http://coinmarketcap.com/

Re: Don't use 1234 as your password

#49
post #33

Why not disable password logins completely, use PKI for all connections, and while we're at it, restrict logins to known hosts? Also, don't use passwordless keys. Then there's moving sshd off of port 22 to provide some obscurity. Yada yada yada... How many times will we have to go over this subject?

Is there any way server-side to determine if a key is passwordless or not?

Not from the public key.

Re: Don't use 1234 as your password

#50

How about a password like this? 1|2|3|4 or 1!2!3!4 — probably not nearly as guessable and more secure. But yes, not using 1234 as your default password for anything is sound advice that everyone should know.

I've added both to my list of passwords for pentests. Thanks.
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