Hillhouse is also a health care executive who has developed behavioral health programs for children with autism. She was CEO and President of Hawaii Behavioral Health. She also founded Thrive Autism Solutions, one of the largest providers of autism behavioral health services in the Midwest.
Hillhouse studied in Central and Eastern Europe for over six years at various institutions including Moscow State University, Moscow Finance Institute, Humboldt University of Berlin, Eberhard Karls University of Tübingen (Germany) and Babes-Bolyai University (Cluj, Romania). She earned her undergraduate degree from Washington University in St. Louis and her MA in Russian and East European Studies as well as her Ph.D. in political science from the University of Michigan.
When living as a student in Europe, she claims to have engaged in the black market between East and West, running Cuban rum, smuggling jewels from the Soviet Union and laundering East Bloc currencies. She claims to have been recruited by the East German secret police, the Stasi, and by the Libyan Intelligence Service. Some sources assert that she was an American intelligence officer, but Hillhouse denies this.
Hillhouse writes a national security blog which has broken multiple national security stories. Her work has been extensively cited in global media, books and academic journals and law reviews. In 2007 the New York Times Week in Review republished excerpts from an exclusive interview from Hillhouse's blog with the head of the private military corporation Blackwater USA. In June 2007, Hillhouse discovered the US national Intelligence Community budget metadata in a declassified PowerPoint presentation released by the Office of the Director of National Intelligence. Hillhouse broke international news stories on national security risks caused by the explosion in outsourcing governmental intelligence functions. Hillhouse's controversial articles have twice elicited a response from the Office of the Director of National Intelligence—the only times the office of the nation's chief spy has ever publicly responded to the writings of a private citizen. Her most controversial work involved an account of the death of Osama bin Laden.
Death of Bin Laden Report
On August 7, 2011 Hillhouse published an account of Osama bin Laden's death on her blog that suggested Pakistan's Inter-Services Intelligence (ISI) had been sheltering bin Laden in return for Saudi cash and that he was betrayed by a Pakistani intelligence officer. Hillhouse's sources claimed that the narrative given by the White House of the courier revealing the location of bin Laden was a cover story, created to hide involvement of US allies in sheltering bin Laden. According to The Telegraph, Hillhouse's account might explain why U.S. forces encountered no resistance on their way to and in Abbottabad, and why some residents in Abbottabad were warned to stay in their houses the day before the raid. Hillhouse's 2011 story received widespread international attention and was picked up by the Daily Telegraph, The Daily Mail, the National Post, The Vancouver Sun, The Sydney Morning Herald, The New Zealand Herald and others, but had little coverage in the US.
Controversy with Seymour Hersh over Death of Bin Laden Report
In May 2015, Pulitzer-prize winning investigative journalist Seymour Hersh published a report in the London Review of Books in which he claimed to break the story of bin Laden's death. His claims mirrored the one's Hillhouse had raised four years earlier.  The New York Times, Washington Post and global media acknowledged that Hillhouse wrote about the events years before Hersh, although Hersh denied ever having seen Hillhouse's account.  
Media suggested that Hillhouse and Hersh's stories appeared to be based on different sources and The Intercept concluded that they might corroborate each other if the identities of the sources were known. After the Hersh story broke, major news outlets confirmed portions of Hillhouse's original story. NBC News also independently reported that a Pakistani intelligence officer was the source of the original bin Laden location report, and not the courier. NBC News and Agence France-Presse both reported that their sources indicated that a walk-in was a highly valuable asset in the discovery of bin Laden. Pakistan-based journalist Amir Mir in the News International reported the walk-in's identity to be Usman Khalid, though that allegation was denied by Khalid's family.
She has also published stories on national security in the Washington Post and The Nation. In the controversial Washington Post article, Hillhouse wrote that "the private spy industry has succeeded where no foreign government has: It has penetrated the CIA and is running the show." In the Nation article, Hillhouse revealed that private companies are heavily involved in the nation’s most important and most sensitive national security document — the President’s Daily Brief. Hillhouse was also a regular contributor to Wired's national security blog, The Danger Room.
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- “Outsourcing Intelligence.” The Nation, 31 July 2007.
- “Who Runs the CIA?” Washington Post, Sunday op-ed. 8 July 2007.
- “A Security Contractor Defends His Team, Which, He Says, Is Not a Private Army.” The New York Times, 29 April 2007.
- "Communist Politics and Sexual Dissidents. Social Movements in Eastern Europe." Sexual Minorities and Society: The Changing Attitudes toward Sexuality in 20th Century Europe. Tallinn: Estonian Academy of Sciences, 1991.
- "Out of the Closet behind the Wall: Sexual Politics and Social Change in the GDR." Slavic Review, 49:4 (Winter 1990), 585-96.
Hillhouse's debut novel, Rift Zone (2004), is a spy thriller about a female smuggler who becomes entangled in an East German plot to stop the fall of the Berlin Wall. The American Booksellers Association Book Sense program selected it as one of the best books of 2004 and Library Journal named it one of the year's most promising debuts. Her second novel, Outsourced (2007) is a political thriller about the outsourcing of the CIA and Pentagon and the turf wars between the two agencies. Publisher's Weekly named the audio version one of the best books of the year.
- Outsourced. New York: Forge Books, 2007.
- (Audio). Blackstone Audiobooks, 2007.
- (Italian). Mondadori, 2008.
- (Dutch). Uitgeverij Luitingh, 2008.
- “Diplomatic Constraints.” Thriller. Ed. by James Patterson. New York: Mira Books, 2006.
- “I knew Julius No. Julius No was a friend of mine. Osama, you are no Dr. No.—An open letter to bin Laden from James Bond’s Greatest Villains.” James Bond in the 21st Century: Why We Still Need 007. Dallas: BenBella Books, 2006.
- “Secret Agent Chick.” This is Chick-Lit. Ed. by Lauren Baratz-Logsted. Dallas: BenBella Books, 2006.
- Rift Zone. Forge Books: New York, 2004.
- (Mass market paperback) Forge Books: New York, 2005.
- (Russian translation, Шпионка по случаю), St. Petersburg: Alpharet, 2006.
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- "Liz Kinsella with Thrive Autism Solutions in St. Louis Urges Companies to Hire Workers with Autism". Hawaii News Now. July 29, 2016. Retrieved August 6, 2016.
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- (McGuire, 2004; Adler, 2004)
- (Nolan, 2004)
- The Spy Who Billed Me blog
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- Windsor, Lindsay (June 2013). "James Bond, Inc. Private Contractors and Covert Action". Georgetown Law Review. 101.
- Dickinson, Laura (Winter 2010). "MILITARY LAWYERS, PRIVATE CONTRACTORS, AND THE PROBLEM OF INTERNATIONAL LAW COMPLIANCE". New York University Journal of International Law and Politics. 42.
- Chesterman, Simon (2008). "′We Can′t Spy … If We Can′t Buy!′: The Privatization of Intelligence and the Limits of Outsourcing ′Inherently Governmental Functions′". European Journal of International Law. Oxford University. 19 (5).
- Clarke, Richard A. (2009). Your Government Failed You. New York, NY: Harper Perennial. ISBN 978-0061474637.
- Klein, Naomi (2008). The Shock Doctrine: The Rise of Disaster Capitalism. Picador. ISBN 978-0312427993.
- Weiner, Tim (April 29, 2007). "A Security Contractor Defends His Team". The New York Times. Retrieved August 6, 2016.
- Paglen, Trevor (2010). Blank Spots on the Map: The Dark Geography of the Pentagon's Secret World. New York: NAL. ISBN 978-0451229168.
- Teeter, Dwight L (2009). Law of Mass Communications. Foundation Press. p. 500.
- Hillhouse, Raelynn (July 8, 2007). "Who Runs the CIA? Outsiders for Hire". The Washington Post. Retrieved August 6, 2016.
- Sanders, Ronald (July 18, 2007). "The Value of 'Private Spies'". The Washington Post. Retrieved August 6, 2016.
- Crilly, Rob (10 August 2011). "Osama bin Laden 'protected by Pakistan in return for Saudi cash'". The Daily Telegraph. Retrieved 11 August 2011.
- Schwartz, Jon (11 May 2015). "Sy Hersh's bin Laden Story First Reported in 2011 — With Seemingly Different Sources". The Intercept. Retrieved 6 August 2016.
- Hersh, Seymour (21 May 2015). "The Killing of Osama bin Laden". London Review of Books. Retrieved 6 August 2016.
- Lerner, Adam (11 May 2015). "Blogger accuses Seymour Hersh of 'plagiarism' for bin Laden raid story". Politico. Retrieved 6 August 2016.
- Calderone, Michael (11 May 2015). "Seymour Hersh's Bin Laden Raid Bombshell Draws White House, Media Pushback". The Huffington Post. Retrieved 6 August 2016.
- "Why We Need to Take Sy Hersh's bin Laden Bombshell Seriously". The Nation. ISSN 0027-8378. Retrieved 2016-08-06.
- Rosenberg, Matthew (11 May 2015). "Seymour Hersh Article Alleges Cover-Up in Bin Laden Hunt". The New York Times. Retrieved 6 August 2016.
- Farhi, Paul (15 May 2015). "The ever-iconoclastic, never-to-be-ignored, muckraking Seymour Hersh". The Washington Post.
- Trotter, JK (19 October 2015). "New York Times Ignores Pivotal 2011 Blog Post About Osama bin Laden Raid". Gawker. Retrieved 6 August 2016.
- Cole, Matthew (11 May 2015). "Pakistani Asset Helped in Hunt for Bin Laden, Sources Say". NBC News. Retrieved 2016-08-06.
- AFP (2015-05-12). "Pakistan military officials admit defector's key role in Bin Laden operation". Retrieved 2016-08-06.
- Washington Post
- "The Listen Up Awards The Best Audios of 2007". Publisher's Weekly. 2008-01-07. Retrieved 2016-08-06.
- Nolan, Tom (May 18, 2004). "Women Writers Infiltrate the Realm of Spy Novels." The Wall Street Journal, p. D10.
- (September 6, 2004). "Last Gasp!" People, p. 60.
- "Big Achievers Share the Greatest Risk They Ever Took," Forbes.
- Dick Adler (August 22, 2004). "Smugglers, Spies, Killers and More." Chicago Tribune.
- Eugene Weber (October 17, 2004). "Freedom, Fire and Ire." Los Angeles Times, part R, p. 9.