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For those who don't know, this is rtm's (YC partner Robert T. Morris) father. My condolences to him.
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Condolences to rtm.
From wikipedia: Robert Morris was the author of crypt the UNIX encryption tool. ViM uses (to the best of my knowledge) crypt when called with -x.
I was fortunate to meet rtm a couple months ago; a very nice (and smart, insightful, etc.) guy. My condolences on the loss of his father.
Until I read the age at the end of the title I thought it was the younger RM that had died, esp. with the black band at the top of HN.

What a pity, that's sad news to wake up to.

Condolences to Robert.

http://en.wikipedia.org/wiki/Robert_Morris_%28cryptographer%...

It sucks to reach up and hit refresh on HN and see that black bar jump out at you and know we've lost someone great.

Never underestimate the attention, risk, money and time that an opponent will put into reading traffic.

Rule 1 of cryptanalysis: check for plaintext.

The three golden rules to ensure computer security are: do not own a computer; do not power it on; and do not use it.

--Robert Morris

I'm glad he powered on and used his.

I love those rules. RIP Robert Morris.
Unknowingly, all of us who use technology have been touched by your father's work. Thank you very much for his contributions to the world.
I knew someone had died before I even started scanning the stories, because of the black bar up top.

My condolences to his family. He was quite an accomplished computer scientist.

My condolences also to rtm. I assume this is why the top bar of HN has a black border-top?
This must explain the Black added to the HN top banner (or someone is spoofing Google+). Condolences, rtm.
It's important to pause now and then to recall what a glorious time we live in, where we are alive at the same moment as so many other great human beings. Some in technology. Some in humanitarian works. Some in music. Even if they're near the end of their time here, that you and I existed on this ball of rock at the same time they walked it is pretty fantastic.

My best to Mr. Morris and his family and friends.

Anyone would be lucky to live as full, productive, and long a life. Condolences to Rtm and his family.
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I feel terrible that I think of his son first every time I see something about him. May he rest in peace.
Where can I find his photo?
RTM and his controversial (for that time) Internet worm were key influences during my early years with computers and computer networks. My condolences to him and the rest of the Morris family.
What sad news.

When I was doing my doctorate in security I used to attend or give papers at the IEEE Computer Security Foundations Workshop (http://www.ieee-security.org/CSFWweb/) which was held in a lovely old hotel in Franconia, NH. This was a really small gathering of people deeply involved the theory of securing computers.

Bob Morris and his wife Anne used to attend each year. It was unusual for people to bring their loved ones to this gathering and having the two of them there gave a certain holiday like atmosphere to the whole affair.

He was a gentleman and very kind to me as a young graduate student and I remember well playing games in the hotel grounds with him and Anne. At the time he was Chief Scientist at the NSA and the Rainbow books had been produced under his gaze. But he was humble, approachable and helpful.

Condolences to rtm.

Do you have any photo? Can't find any in Wikipedia nor Google.
Condolences. The world is better for having had him, and worse for having lost him.
Sad news, my sincere condolences to rtm and his family.
Cliff Stoll has a nice account of meeting Robert Morris at the NSA in chapter 45 of "The Cuckoo's Egg".

http://users.tmok.com/~pazzi/cuckoo_egg.pdf http://en.wikipedia.org/wiki/The_Cuckoo%27s_Egg_(book)

Thanks for posting that, this was the passage I thought of immediately upon seeing the announcement, and my introduction to who Morris was and why he was so important.

Condolences to rtm. A mighty oak has fallen.

Wanted to say the same thing, I just finished the book a week ago, never heard of him before and still I feel strangely affected by his death. Condolences to his family and firends.
The first Java program I remember writing was something that generated the "Robert Morris Sequence" -- the number sequence that Robert Morris Sr. gave to Cliff Stoll, which Stoll referenced in chapter 48 of the Cuckoo's Egg:

1 11 21 1211 111221 312211

I found that book on sale for 50c at a recycling shop. Best 50c I ever spent.

Today is truly a sad day.

My favorite part is how he starts off by critiquing Stoll's dissertation. "...although I thought that all atmostpheres were adiabatic so long as they convected."

It seems like the pioneers in new fields (computer security in this case) tend to know a lot about other ones, also.

So that is what the black bar is about, I was afraid it was a childish pun on Google's redesign :-S and now I feel bad for thinking that.
Don't feel too bad, that's what I thought too.
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Condolences to rtm and family.

It's a poignant reminder of just how young our field is that we are mourning the loss of some true early pioneers. Imagine if you were a physicist just learning of the passing of Newton? It's also a reminder to value the experience and wisdom of those who are still here with us...

Very sad news. Condolences to family and friends.