Yes, Paul was mentioned in the context of Robert’s worm in the book, specifically:
>> Whatever his purposes were, I don't believe he was in cahoots with his father. Rumors have it that he worked with a friend or two at Harvard's computing department (Harvard student Paul Graham sent him mail asking for "Any news on the brilliant project"), but I doubt his father would encourage anyone to create a virus. As Bob Morris, Sr., said, "This isn't exactly a good mark for a career at NSA."
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From Wikipedia: “The Morris worm or Internet worm of November 2, 1988, was one of the oldest computer worms distributed via the Internet, and the first to gain significant mainstream media attention. It also resulted in the first felony conviction in the US under the 1986 Computer Fraud and Abuse Act. It was written by a graduate student at Cornell University, Robert Tappan Morris, and launched on November 2, 1988, from the computer systems of the Massachusetts Institute of Technology. [1] He went on to cofound the online store Viaweb, one of the first web applications, and later the venture capital funding firm Y Combinator, both with Paul Graham. [2] ”
>> Whatever his purposes were, I don't believe he was in cahoots with his father. Rumors have it that he worked with a friend or two at Harvard's computing department (Harvard student Paul Graham sent him mail asking for "Any news on the brilliant project"), but I doubt his father would encourage anyone to create a virus. As Bob Morris, Sr., said, "This isn't exactly a good mark for a career at NSA."
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From Wikipedia: “The Morris worm or Internet worm of November 2, 1988, was one of the oldest computer worms distributed via the Internet, and the first to gain significant mainstream media attention. It also resulted in the first felony conviction in the US under the 1986 Computer Fraud and Abuse Act. It was written by a graduate student at Cornell University, Robert Tappan Morris, and launched on November 2, 1988, from the computer systems of the Massachusetts Institute of Technology. [1] He went on to cofound the online store Viaweb, one of the first web applications, and later the venture capital funding firm Y Combinator, both with Paul Graham. [2] ”
[1] https://en.m.wikipedia.org/wiki/Morris_worm
[2] https://en.m.wikipedia.org/wiki/Robert_Tappan_Morris